APA (7th ed.) Zitazioa

GUTHRIE, W. (1950). The Greek Philosophers. Methuen.

Chicago Style (17th ed.) Zitazioa

GUTHRIE, W.K.C. The Greek Philosophers. London: Methuen, 1950.

MLA (9th ed.) Zitazioa

GUTHRIE, W.K.C. The Greek Philosophers. Methuen, 1950.