APA (7th ed.) Citation

Popper, K. (1962). The open society and its enemies. Routledge & Kegan.

Chicago Style (17th ed.) Citation

Popper, K.R. The Open Society and Its Enemies. London: Routledge & Kegan, 1962.

MLA (9th ed.) Citation

Popper, K.R. The Open Society and Its Enemies. Routledge & Kegan, 1962.