APA (7th ed.) Citation

Popper, K. (1969). The open society and its enemies. Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Popper, K.R. The Open Society and Its Enemies. Routledge and Kegan Paul, 1969.

MLA (9th ed.) Citation

Popper, K.R. The Open Society and Its Enemies. Routledge and Kegan Paul, 1969.

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