APA ציטוט

Ayer, A. J. (1984). Philosophy in the twentieth century. London: Counterpoint.

Trích dẫn kiểu Chicago

Ayer, A. J. Philosophy in the Twentieth Century. London: Counterpoint, 1984.

ציטוט MLA

Ayer, A. J. Philosophy in the Twentieth Century. London: Counterpoint, 1984.