The European Library announced that it released Linked Open Data for over 82 million bibliographic records all CC0. This data comes from over 25 data providers from 22 countries amounting to 127 collections. The datasets can be downloaded from the European Library downloads page.
The files are organized by dataset, and are provided in three formats/encodings:
- RDF in application/rdf+xml
- RDF in text/turtle
- Dublin Core Element Set in text/xml
Browse the collections here