Cita APA (7a ed.)

Berlin, I., & Hardy, H. (2002). Freedom and its betrayal: : six enemies of human liberty. Princeton University Press.

Cita Chicago Style (17a ed.)

Berlin, Isaiah, y Henry Hardy. Freedom and Its Betrayal: : Six Enemies of Human Liberty. Princeton [N.J.]: Princeton University Press, 2002.

Cita MLA (9a ed.)

Berlin, Isaiah, y Henry Hardy. Freedom and Its Betrayal: : Six Enemies of Human Liberty. Princeton University Press, 2002.