APA (7th ed.) Citation

Freud, S., & Freud sigmund. (1960). Group psychology and the analysis of the ego. Banam.

Chicago Style (17th ed.) Citation

Freud, Sigmund, and Freud sigmund. Group Psychology and the Analysis of the Ego. New York: Banam, 1960.

MLA (9th ed.) Citation

Freud, Sigmund, and Freud sigmund. Group Psychology and the Analysis of the Ego. Banam, 1960.