Cita APA (7th ed.)

Popper, K. R. S. (1963). The open society and its enemies ([4th ed. rev.].). Princeton University Press.

Cita Chicago (17th ed.)

Popper, Karl Raimund Sir. The Open Society and Its Enemies. [4th ed. rev.]. Princeton, N.J: Princeton University Press, 1963.

Cita MLA (9th ed.)

Popper, Karl Raimund Sir. The Open Society and Its Enemies. [4th ed. rev.]. Princeton University Press, 1963.