APA (7th ed.) Zitazioa

James A. Gould. (1982). Classic philosophical questions (4th ed.). Merrill.

Chicago Style (17th ed.) Zitazioa

James A. Gould. Classic Philosophical Questions. 4th ed. Columbus, Ohio: Merrill, 1982.

MLA (9th ed.) Zitazioa

James A. Gould. Classic Philosophical Questions. 4th ed. Merrill, 1982.