Cita APA (7th ed.)
Freud Sigmund. (1962). Three contributions to the theory of sex (ed.). E. P. Dutton & Co..
Cita Chicago (17th ed.)
Freud Sigmund. Three Contributions to the Theory of Sex. ed. New York: E. P. Dutton & Co., 1962.
Cita MLA (9th ed.)
Freud Sigmund. Three Contributions to the Theory of Sex. ed. E. P. Dutton & Co., 1962.
Atenció: Aquestes cites poden no estar 100% correctes.