APA (7th ed.) Citation

Hamlyn, D. W. (1970). The theory of knowledge ([1st ed.].). Anchor Books.

Chicago Style (17th ed.) Citation

Hamlyn, D. W. The Theory of Knowledge. [1st ed.]. Garden City, N.Y.: Anchor Books, 1970.

MLA (9th ed.) Citation

Hamlyn, D. W. The Theory of Knowledge. [1st ed.]. Anchor Books, 1970.