OCLC has published bibliographic linked data for the most widely held works in WorldCat.

 

The download file contains approximately 80 million linked data “triples”, representing nearly 1.5 million resources.

The while WorldCat contains bibliographic records for more than 275 million items of more than 10.000 libraries worldwide. The criteria used to select was: the resource had to be held by at least 250 libraries (Jeff Young). More info.