Cita APA (7th ed.)

Freud, S. (1962). The Ego and the ID =: El ego y el yo. W.W. Norton and Company.

Cita Chicago (17th ed.)

Freud, Sigmund. The Ego and the ID =: El Ego Y El Yo. New York: W.W. Norton and Company, 1962.

Cita MLA (9th ed.)

Freud, Sigmund. The Ego and the ID =: El Ego Y El Yo. W.W. Norton and Company, 1962.