APA (7th ed.) Citation
Popper, K. R. (1962). The open society and its enemies. Harper Torchbooks.
Chicago Style (17th ed.) Citation
Popper, Karl R. The Open Society and Its Enemies. New York: Harper Torchbooks, 1962.
MLA (9th ed.) Citation
Popper, Karl R. The Open Society and Its Enemies. Harper Torchbooks, 1962.
Warning: These citations may not always be 100% accurate.