Cita APA

Freud, S. 1., & Freud, S. 1. (1962). Civilization and its discontents. New York, New York: W.W. Norton.

Citación estilo Chicago

Freud, Sigmund 1856-1939, y Sigmund 1856-1939 Freud. Civilization and Its Discontents. New York, New York: W.W. Norton, 1962.

Cita MLA

Freud, Sigmund 1856-1939, y Sigmund 1856-1939 Freud. Civilization and Its Discontents. New York, New York: W.W. Norton, 1962.