APA (7th ed.) Zitazioa
Service, R. (2000). Lenin: A Biography. Pan Books.
Chicago Style (17th ed.) Zitazioa
Service, Robert. Lenin: A Biography. London: Pan Books, 2000.
MLA (9th ed.) Zitazioa
Service, Robert. Lenin: A Biography. Pan Books, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.