APA Style

Popper, Karl R. (1971). The Open Society and Its Enemies (1). New York: Pricenton University Press.

Chicago Style

Popper, Karl R. The Open Society and Its Enemies. 1 New York: Pricenton University Press, 1971. Text.

MLA Style

Popper, Karl R. The Open Society and Its Enemies. 1 New York: Pricenton University Press, 1971. Text.

Turabian Style

Popper, Karl R. The Open Society and Its Enemies. 1 New York: Pricenton University Press, 1971. Print.