APA (7th ed.) Zitazioa

EWING, A. (1985). The Fundamental questions of philosophy. Routledge.

Chicago Style (17th ed.) Zitazioa

EWING, A.C. The Fundamental Questions of Philosophy. London: Routledge, 1985.

MLA (9th ed.) Zitazioa

EWING, A.C. The Fundamental Questions of Philosophy. Routledge, 1985.