Robuta

https://handwiki.org/wiki/W:International_Standard_Book_Number
Jun 27, 2023 - The International Standard Book Number (ISBN) is a numeric commercial book identifier which is intended to be unique. Publishers purchase ISBNs from an...
standard book numberinternational
https://www.loc.gov/marc/bibliographic/bd020.html
This field contains the (Network Development and MARC Standards Office, Library of Congress)
international standardmarcformatbibliographicdata
https://www.wikidata.org/wiki/Q33057
unique numeric book identifier
standard book numberinternationalwikidata