APA (7. basım) Alıntı

Ayer, A. J. (1976). The central questions of philosophy. Penguin Books.

Chicago Style (17. basım) Atıf

Ayer, A. J. The Central Questions of Philosophy. Harmondsworth, Middlesex: Penguin Books, 1976.

MLA (9th ed.) Atıf

Ayer, A. J. The Central Questions of Philosophy. Penguin Books, 1976.