APA stil citiranja

Ayer, A. J. (1982). Philosophy in the Twentieth Century: Philosophy in the Twentieth Century. London: Weidenfeld and Nicolson.

Chicago stil citiranja

Ayer, Alfred Jules. Philosophy in the Twentieth Century: Philosophy in the Twentieth Century. London: Weidenfeld and Nicolson, 1982.

MLA stil citiranja

Ayer, Alfred Jules. Philosophy in the Twentieth Century: Philosophy in the Twentieth Century. London: Weidenfeld and Nicolson, 1982.