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National Agricultural Library Thesaurus
The NAL Thesaurus is an online vocabulary tool of agricultural terms in English and Spanish and is cooperatively produced by the National Agricultural Library, USDA and the... -
Hungarian National Library (NSZL) catalog
OPAC and Digital Library and the corresponding authority data as Linked Open Data. The used vocabularies are * RDFDC for bibliographic data, * FOAF for name authority entries,... -
Open Library
About One web page for every book ever published. It's a lofty, but achievable, goal. To build it, we need hundreds of millions of book records, a brand new database... -
HeBIS - Bibliographic Resources of the Library Union Catalogues of Hessen and...
This site contains links to metadata about all types of publications (print media, E-books, E-journals,online resources) originating from the central union database of HeBIS....