APA Citation

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.

MLA Citation

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

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.