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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... -
B3Kat - Library Union Catalogues of Bavaria, Berlin and Brandenburg
Joint Union Catalogue of 180 academic libraries in the german states of Bavaria, Berlin and Brandenburg. The data contains descriptions of 25Mio. titles and 58Mio. holdings... -
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...