Cita APA (7a ed.)

Freud, S., & Strachey, J. (1989). Civilization and its discontents. Norton.

Cita Chicago Style (17a ed.)

Freud, Sigmund, y James Strachey. Civilization and Its Discontents. New York: Norton, 1989.

Cita MLA (8a ed.)

Freud, Sigmund, y James Strachey. Civilization and Its Discontents. Norton, 1989.

Precaución: Estas citas no son 100% exactas.