Template:PublicationFields:ExternalIDs

• External IDs - If this publication is listed by a supported third party bibliographic source which has assigned a permanent ID to it, select the source from the drop-down list on the left and enter the ID in the field on the right. If you need to enter additional External IDs, click the "Add External ID" button. Note that you can enter multiple External IDs per source if needed, e.g. OCLC/WorldCat frequently has more than one record per ISBN. The following third party bibliographic sources are currently supported:

ID	Name/Link	Description	Where to find it
ASIN	Amazon Standard Identification Number		Look for the "ASIN" line in the "Product Details" section of the page. If the ASIN matches the ISBN10 of the book, do not record it. Most ASINs will start with B but for some older books, there may be exceptions.
Audible-ASIN	Audible	Valid only for audiobooks	Look for the "ASIN" in the address bar. It will look something like https://www.audible.com/pd/Good-Omens-Audiobook/B0036KV7Y4. Extract the B number (B0036KV7Y4 in this case). Please note that for audiobooks, you will usually have both this ASIN and the regular ASIN above.
BL	The British Library		Look for the "system number" part of the "Identifier" line. Alternatively, get it from the UIN number by removing the leading "BLL01". At this time all BL numbers start with 0.
Bleiler Gernsback	Everett F. Bleiler, Richard Bleiler. Science-Fiction: The Gernsback Years. Kent State University Press, 1998, xxxii+730pp		Use the number printed next to each record. Not available online at this time.
Bleiler Early Years	Richard Bleiler, Everett F. Bleiler. Science-Fiction: The Early Years. Kent State University Press, 1991, xxiii+998 p.		Use the number printed next to each record. Not available online at this time.
Bleiler Supernatural	Everett F. Bleiler. The Guide to Supernatural Fiction. Kent State University Press, 1983, xii+723 p.		Use the number printed next to each record. Not available online at this time.
BN	Barnes and Noble		Look for the EAN. If it is a real EAN, it will start with 294. If it matches the ISBN13, do not record it as a BN number but as an ISBN.
BNB	The British National Bibliography	Part of the British Library.	Look for the "BNB" entry on the "Identifier" line. Do not use numbers starting with BLL. Even though they can find the book, these are BL numbers (see above how to strip them for find the BL number).
BNF	Bibliothèque nationale de France		These always start with "cb" and can be found as the last part of the "Citer la notice" part of the BNF page. Do not use the notice number (these usually start with FR).
COPAC	UK/Irish union catalog		The record ID in the COPAC site. Contains only numbers.
DNB	Deutsche Nationalbibliothek		The ID in the DNB site. Contains numbers and x/X.
FantLab	Laboratoria Fantastiki	Russian: Лаборатория Фантастики	We require the editions ID and not the work one. Strip the word edition from the last part of the URL and use just the number. If you are looking at the work URL, click on the exact edition.
Goodreads	Goodreads	Social cataloging site	Use just the number from the ID - remove all other texts (usually the numbers are followed by - and a stylized version of the title; we need only the numbers)
JNB/JPNO	Japanese National Bibliography	Japanese: 全国書誌データ提供, part of the National Diet Library (NDL)	The name of the field in the library page is "National Bibliography No.(JPNO)". Usually contains only numbers.
KBR	De Belgische Bibliografie/La Bibliographie de Belgique	Hosted by De Koninklijke Bibliotheek van België	Numeric part of the address bar (URL)
LCCN	Library of Congress Control Number		Both the complete string (87000023) and the hyphen one (87-23) are accepted.
LTF	La Tercera Fundación	Spanish bibliography	Record the numbers only; we need the publication IDs and not the title ones (the URLs should contain "ver/libro/" and not "ver/ficha/" before the ID. If you are looking at the ficha one, click on the exact edition.
NDL	National Diet Library	Japanese: 国立国会図書館
OCLC/WorldCat	WorldCat	Publicly available catalog of the Online Computer Library Center	Look for the line which starts with "OCLC Number:"
Open Library	Open Library
PPN	De Nederlandse Bibliografie		Look for the "Perma" button/link at the bottom of any publication-specific Web page
Reginald-1	R. Reginald. Science Fiction and Fantasy Literature: A Checklist, 1700-1974, with Contemporary Science Fiction Authors II. Gale Research Co., 1979, 1141p.	First edition of English-language SF books published prior to 1975	A number is printed next to ever record; reprints which use a different title usually append a single letter ("A", "B", etc) to the end of the number. Not available online at this time.
Reginald-3	Robert Reginald. Science Fiction and Fantasy Literature, 1975-1991: A Bibliography of Science Fiction, Fantasy, and Horror Fiction Books and Nonfiction Monographs. Gale Research Inc., 1992, 1512 p.	First edition of English-language SF books published between 1975 and 1991	A number is printed next to ever record; reprints which use a different title usually append a single letter ("A", "B", etc) to the end of the number. Not available online at this time.
SFBG	Catalog of sff books published in Bulgaria	Bulgarian: SFBG (no name in Cyrillic used). The name СФБГ can be found at certain sites.	The ID is embedded in the address bar - everything after /book/.