APA (7th ed.) Zitazioa
OCLC & ebrary, Inc. (2008). OCLC systems & services: International digital library perspectives. Emerald.
Chicago Style (17th ed.) Zitazioa
OCLC eta Inc ebrary. OCLC Systems & Services: International Digital Library Perspectives. [Bradford, England]: Emerald, 2008.
MLA (9th ed.) Zitazioa
OCLC eta Inc ebrary. OCLC Systems & Services: International Digital Library Perspectives. Emerald, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.