APA Citation

Ayer, A. (1940). The foundation of empirical knowledge. London: Macmillan.

Chicago Style Citation

Ayer, AlfredJ. The Foundation of Empirical Knowledge. London: Macmillan, 1940.

MLA Citation

Ayer, AlfredJ. The Foundation of Empirical Knowledge. London: Macmillan, 1940.

Warning: These citations may not always be 100% accurate.