APA (7th ed.) Citation

Freud, S. (1922). Group psychology and the analysis of the ego. Boni and Liveright.

Chicago Style (17th ed.) Citation

Freud, Sigmund. Group Psychology and the Analysis of the Ego. New York: Boni and Liveright, 1922.

MLA (9th ed.) Citation

Freud, Sigmund. Group Psychology and the Analysis of the Ego. Boni and Liveright, 1922.

Warning: These citations may not always be 100% accurate.