APA (7th ed.) Zitazioa
Copleston, F. C. (1956). A History of Philosophy: Greece and Rome.
Chicago Style (17th ed.) Zitazioa
Copleston, Frederick C. A History of Philosophy: Greece and Rome. 1956.
MLA (9th ed.) Zitazioa
Copleston, Frederick C. A History of Philosophy: Greece and Rome. 1956.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.