search

Search the National Library's catalog - books, newspapers, journals, photos, maps, music, manuscripts, radio/TV and more, both physical and digitized. Digitized text (OCR) is matched too by default, so a query can surface newspaper or book pages that mention a term even when it's not in the title.

Signature: search(q: string, required; media_type: string, optional, default None; language: string, optional, default None; county: string, optional, default None; year_from: integer, optional, default None; year_to: integer, optional, default None; digital_only: yes/no, optional, default False; sort: one of: date, date,desc, title, title,desc, otherid, otherid,desc, firstDigitalContentTime, firstDigitalContentTime,desc, optional, default None; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0)

Direct GET

For navigating agents: open the HTML page with parameters in the URL. The result is fetched and displayed without screenshots or form filling.

Open this validated HTML GET URL

https://allemannsdata.com/wiki/kilder/nasjonalbiblioteket/search/?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&limit=25&offset=0

Replace {q}, {media_type}, {language}, {county}, {year_from}, {year_to}, {digital_only}, {sort} with values. Remove unused optional parameters from the URL.

For software and dashboards: Read the operation descriptor. The JSON GET template is https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&limit=25&offset=0. Open this exact request as JSON.

ParameterRequirementJSON typeDescription
qrequiredstringFree-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
media_typeoptionalunionRestrict to one type, e.g. aviser (newspapers), bøker (books), tidsskrift (journals), bilder (photos), musikk, kart (maps), film, plakater (posters), noter (sheet music), radio, fjernsyn. See get_aggregations(q="*", group_by="mediatype") for the full list with counts.
languageoptionalunionLanguage filter - values are inconsistent in the catalog (mixes codes like "nob" and labels like "Norsk bokmål"); check get_aggregations(q=q, group_by="languages") first if unsure.
countyoptionalunionNorwegian county name, e.g. "Troms", "Oslo".
year_fromoptionalunionRestrict to items published/issued in this year range (inclusive).
year_tooptionalunionRestrict to items published/issued in this year range (inclusive).
digital_onlyoptionalbooleanOnly items that have been digitized.
sortoptionalunionOne of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).
limitoptionalintegerGateway page size; default 25, maximum 100.
offsetoptionalintegerNumber of list items to skip; default 0.
Generated JavaScript, Python and response structure

Use JSON when the user requests code, machine-readable data, value extraction or further computation. Use the HTML GET page to identify the correct source and verify parameters.

Example for generated JavaScript and Python

https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&limit=25&offset=0

Replace URL placeholders and remove unused optional parameters.

JavaScript in a dashboard

const url = "https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&limit=25&offset=0";
const response = await fetch(url);
if (!response.ok) {
  const failure = await response.json();
  throw new Error(`${failure.error.code}: ${failure.error.message} ${failure.suggestion}`);
}
const result = await response.json();
const data = result.data;

Python without additional packages

import json
from urllib.request import urlopen

url = "https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&limit=25&offset=0"
with urlopen(url) as response:
    result = json.load(response)
data = result["data"]

Response structure

{
  "source": "nasjonalbiblioteket",
  "operation": "search",
  "parameters": {},
  "data": {},
  "entities": [],
  "_meta": {"retrieved_at": "...", "sources": [], "cache": {}},
  "_links": {"self": "...", "source": "...", "wiki": "...", "feedback": "..."}
}
Form for manual use

The form is a fallback for people and browser agents that cannot open the GET URL directly.

Type: string. Free-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
Type: string. Restrict to one type, e.g. aviser (newspapers), bøker (books), tidsskrift (journals), bilder (photos), musikk, kart (maps), film, plakater (posters), noter (sheet music), radio, fjernsyn. See get_aggregations(q="*", group_by="mediatype") for the full list with counts.
Type: string. Language filter - values are inconsistent in the catalog (mixes codes like "nob" and labels like "Norsk bokmål"); check get_aggregations(q=q, group_by="languages") first if unsure.
Type: string. Norwegian county name, e.g. "Troms", "Oslo".
Type: integer. Restrict to items published/issued in this year range (inclusive).
Type: integer. Restrict to items published/issued in this year range (inclusive).
Type: yes/no. Only items that have been digitized.
Type: one of: date, date,desc, title, title,desc, otherid, otherid,desc, firstDigitalContentTime, firstDigitalContentTime,desc. One of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).

Result

Source: National Library of Norway. Retrieved 2026-11-13T04:05:29Z in 0.294 seconds.

total:
94960
page:
0
size:
25
items:

25 results

  1. id:
    6478c9950da0e36ecab3a5b30fc6a82d
    urn:
    not reported by source
    title:
    - Bare vent til det kommer bedre tider : pengene renner ut av Asmund Haares hotellkjede First hotels
    creators:

    2 results

    1. Njå, Hege
    2. Haare, Asmund
    year:
    2003
    publisher:
    not reported by source
    media_types:

    1 results

    1. artikler
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
    no
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    not reported by source
    viewer_url:
    https://www.nb.no/items/6478c9950da0e36ecab3a5b30fc6a82d
  2. id:
    6bbee15a04b9568c4f08b2c9a491183a
    urn:
    not reported by source
    title:
    Milliard - eller minus? : stor tvil om verdiene i Asmund Haares kriserammede hotellkjede
    creators:

    1 results

    1. Bergh, Finn Øystein
    year:
    2005
    publisher:
    not reported by source
    media_types:

    1 results

    1. artikler
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
    no
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    not reported by source
    viewer_url:
    https://www.nb.no/items/6bbee15a04b9568c4f08b2c9a491183a
  3. id:
    ff8b6b79cd9ebbe2cc972fb400f1ec32
    urn:
    URN:NBN:no-nb_digitidsskrift_2024053080063_002
    title:
    Be great (hotels) : hotels, food & wine .... 2020 2
    creators:
    not reported by source
    year:
    2020
    publisher:
    TM media
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2024053080063_002_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/ff8b6b79cd9ebbe2cc972fb400f1ec32
  4. id:
    0bc5e141dc3c321dc1250f1f1cadfe7b
    urn:
    URN:NBN:no-nb_digitidsskrift_2024053080063_001
    title:
    Be great (hotels) : hotels, food & wine .... 2019 1
    creators:
    not reported by source
    year:
    2019
    publisher:
    TM media
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2024053080063_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/0bc5e141dc3c321dc1250f1f1cadfe7b
  5. id:
    81cbebf7a1bfcae8f28f461306063ddc
    urn:
    URN:NBN:no-nb_digitidsskrift_2024112083014_001
    title:
    Hotels in Norway (Bergen) : Hotels in Norwegen = Norske hoteller : og andre overnattingsbedrifter. 2004/2005
    creators:
    not reported by source
    year:
    2004
    publisher:
    Reiselivsutvikling
    media_types:

    1 results

    1. tidsskrift
    languages:

    4 results

    1. eng
    2. ger
    3. nob
    4. mul
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2024112083014_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/81cbebf7a1bfcae8f28f461306063ddc
  6. id:
    fa339cc8510ecf4b15812de129e37770
    urn:
    URN:NBN:no-nb_digitidsskrift_2025061983188_001
    title:
    Choice journal (engelsk). 2009
    creators:

    1 results

    1. Choice Hotels Scandinavia
    year:
    2009
    publisher:
    Choice Hotels Scandinavia
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2025061983188_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/fa339cc8510ecf4b15812de129e37770
  7. id:
    a9486fdf1c8d965c7be15b5b9bc5725d
    urn:
    not reported by source
    title:
    Hotell-hype
    creators:

    1 results

    1. Paulsberg, Caroline
    year:
    2001
    publisher:
    not reported by source
    media_types:

    1 results

    1. artikler
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
    no
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    not reported by source
    viewer_url:
    https://www.nb.no/items/a9486fdf1c8d965c7be15b5b9bc5725d
  8. id:
    3d2477e4c5f5c5638e7e4fd1cc503a57
    urn:
    URN:NBN:no-nb_digibok_2010101808039
    title:
    Heat pumps for heating and cooling of hotels
    creators:

    1 results

    1. Eggen, Geir
    year:
    1990
    publisher:
    Kuldeteknikk, NTH-SINTEF
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2010101808039_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/3d2477e4c5f5c5638e7e4fd1cc503a57
  9. id:
    3784c7a06def6c78bbcdcba78a838279
    urn:
    URN:NBN:no-nb_digibok_2022111448043
    title:
    Moving pictures/stopping places : hotels and motels on film
    creators:

    3 results

    1. Clarke, David B.
    2. Doel, Marcus A.
    3. Pfannhauser, Valerie Crawford
    year:
    2009
    publisher:
    Lexington Books
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2022111448043_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/3784c7a06def6c78bbcdcba78a838279
  10. id:
    ea66f3189e3ff3e154a7b6a5bc63c4df
    urn:
    URN:NBN:no-nb_digibok_2011062806093
    title:
    Love at first sight
    creators:

    1 results

    1. Larssen, Kåre
    year:
    2003
    publisher:
    Setesdalsforl.
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2011062806093_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/ea66f3189e3ff3e154a7b6a5bc63c4df
  11. id:
    ec1d619170935f62b6789d786c78d742
    urn:
    URN:NBN:no-nb_digibok_2024012348013
    title:
    Landingslag the first 100 years : 100th anniversary publication (1910-2010)
    creators:

    2 results

    1. Edwards, Ann Ryall
    2. Landings Laget of America
    year:
    2010
    publisher:
    Landings Laget of America
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2024012348013_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/ec1d619170935f62b6789d786c78d742
  12. id:
    5dbf1952a09b6a6c5d648a784de7a323
    urn:
    URN:NBN:no-nb_pliktmonografi_000066338
    title:
    People first : the company during wartime
    creators:

    1 results

    1. Nistad, Stein Arne
    year:
    2025
    publisher:
    SeñorC
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_pliktmonografi_000066338_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/5dbf1952a09b6a6c5d648a784de7a323
  13. id:
    8ad2709c6092bcf5896cab9d13f0d3aa
    urn:
    URN:NBN:no-nb_digibok_2016071848003
    title:
    Engelsk ordbok = Chambers first learners' dictionary. 2
    creators:

    1 results

    1. Brown, Amy L.
    year:
    1979
    publisher:
    Kunnskapsforl.
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2016071848003_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/8ad2709c6092bcf5896cab9d13f0d3aa
  14. id:
    0193e63b3ea480efda18138a4d7a08ff
    urn:
    URN:NBN:no-nb_digibok_2009081801006
    title:
    Preparing for the twenty-first century
    creators:

    1 results

    1. Kennedy, Paul
    year:
    1993
    publisher:
    HarperCollins
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2009081801006_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/0193e63b3ea480efda18138a4d7a08ff
  15. id:
    75471c1eb69b518093635b566b1fb7ce
    urn:
    URN:NBN:no-nb_digibok_2009121000030
    title:
    Proceedings of IIIS-98 : (First International Workshop on Innovative Internet Information Systems)
    creators:

    4 results

    1. International Workshop on Innovative Internet InformationSystems
    2. Divitini, Monica
    3. Brasethvik, Terje
    4. Schwartz, David G.
    year:
    1998
    publisher:
    Norges teknisk-naturvitenskapelige universitet, Fakultet for fysikk, informatikk og matematikk, Institutt for datateknikk og informasjonsvitenskap
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2009121000030_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/75471c1eb69b518093635b566b1fb7ce
  16. id:
    6aab7d78bed9d948be003a6a0664cea4
    urn:
    URN:NBN:no-nb_digibok_2013072306072
    title:
    Norges første folketelling 1769 = The first population census in Norway 1769 = : The first population census in Norway 1769
    creators:

    1 results

    1. Statistisk sentralbyrå
    year:
    1980
    publisher:
    Statistisk sentralbyrå
    media_types:

    1 results

    1. bøker
    languages:

    3 results

    1. eng
    2. nob
    3. mul
    county:
    not reported by source
    digital:
    yes
    public_domain:
    yes
    license:
    publicdomain
    viewability:
    ALL
    access_allowed_from:
    EVERYWHERE
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2013072306072_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/6aab7d78bed9d948be003a6a0664cea4
  17. id:
    643c206e244a193a8e544e61f8fce7a0
    urn:
    URN:NBN:no-nb_digibok_2022082448019
    title:
    An Overheated world : an anthropological history of the early twenty-first century
    creators:

    1 results

    1. Eriksen, Thomas Hylland
    year:
    2018
    publisher:
    Routledge
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2022082448019_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/643c206e244a193a8e544e61f8fce7a0
  18. id:
    c96910bcfd476d1fcf6e9602fb83162a
    urn:
    URN:NBN:no-nb_digibok_2007112201086
    title:
    Report from the First National Conference of Sociology, Geiranger, May 1990. 2
    creators:

    2 results

    1. National conference of sociology
    2. Norges allmennvitenskapelige forskningsråd
    year:
    1991
    publisher:
    Norges allmennvitenskapelige forskningsråd
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2007112201086_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/c96910bcfd476d1fcf6e9602fb83162a
  19. id:
    27a31829ef2c054d47e684ac10351e6e
    urn:
    URN:NBN:no-nb_digibok_2007111901030
    title:
    Report from the First National Conference of Sociology, Geiranger, May 1990. 1
    creators:

    2 results

    1. National conference of sociology
    2. Norges allmennvitenskapelige forskningsråd
    year:
    1991
    publisher:
    Norges allmennvitenskapelige forskningsråd
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2007111901030_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/27a31829ef2c054d47e684ac10351e6e
  20. id:
    c02da87d942eb46e2c5618c963563bf5
    urn:
    URN:NBN:no-nb_digibok_2019090248002
    title:
    Giant discovery : a history of Ekofisk through the first 20 years
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    2 results

    1. Kvendseth, Stig S.
    2. Phillips Petroleum Company Norway
    year:
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    publisher:
    Phillips Petroleum Company Norway, Public Affairs
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    1 results

    1. bøker
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    1 results

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    Utlandet
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    title:
    Catching up from way behind - a third world perspective on first world history
    creators:

    1 results

    1. Reinert, Erik S. (Erik Steenfeldt)
    year:
    1993
    publisher:
    Norges teknisk-naturvitenskapelige forskningsråd
    media_types:

    1 results

    1. bøker
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    1 results

    1. eng
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    not reported by source
    digital:
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    no
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  22. id:
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    urn:
    URN:NBN:no-nb_digibok_2009100504003
    title:
    The republic of Karelia : the first years after the USSR : some basic data
    creators:

    2 results

    1. Ries, Tomas
    2. Norge Utenriksdepartementet
    year:
    1994
    publisher:
    Utenriksdepartementet
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
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    no
    license:
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    viewability:
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    access_allowed_from:
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  23. id:
    11212a9487ae7c753f38a51351f2a203
    urn:
    URN:NBN:no-nb_digibok_2012071609017
    title:
    Relational norms as supplement to neoclassical understanding of directorates : an empirical study of the board of directors in joint stock hotels in Norway and Sweden
    creators:

    1 results

    1. Huse, Morten
    year:
    1991
    publisher:
    Nordlandsforskning
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
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    license:
    bokhylla
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  24. id:
    d5895e6d6e323192110a67cef546fe4a
    urn:
    URN:NBN:no-nb_digibok_2014111907533
    title:
    Under crown and anchor : Royal Caribbean Cruise Line : the first twenty-five years, 1970-1995
    creators:

    2 results

    1. Kolltveit, Bård
    2. Maxtone-Graham, John
    year:
    1995
    publisher:
    Royal Caribbean Cruises
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
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    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
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  25. id:
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    urn:
    URN:NBN:no-nb_digibok_2023042048053
    title:
    Minds, microscopes and molecules : the first fifty years of the European Society of Pathology
    creators:

    1 results

    1. Wilson, Andrew
    year:
    2016
    publisher:
    Springer
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
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    thumbnail:
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