Cita APA (7a ed.)

Wittels, F. (1931). Freud and his time. Grosset & Dunlap.

Cita Chicago Style (17a ed.)

Wittels, Fritz. Freud and His Time. New York: Grosset & Dunlap, 1931.

Cita MLA (9a ed.)

Wittels, Fritz. Freud and His Time. Grosset & Dunlap, 1931.