Freud, S. (1964). The future of an illusion. Doubleday & Company.
Cita Chicago (17th ed.)Freud, Sigmund. The Future of an Illusion. Nueva York: Doubleday & Company, 1964.
Cita MLA (9th ed.)Freud, Sigmund. The Future of an Illusion. Doubleday & Company, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.