WorldCat
Da WorldCat is de grässde bibliografische Datnbank vo da Wejd. Ea umfossd Kataloge vo tausendn Online-Computer-Library-Center-Mitgliedabibliothekn.

Da WorldCat sejm is koa Online Computer Library Center (OCLC) Deanst.

Im Netz 
De Hoamseitn vom WorldCat
OCLC - "Web scale" discovery and delivery of library resources
WorldCat Identities
OCLC Bibliographic Formats and Standards

Bibliothekswesen