APA (7th ed.) Citation
Freud, S., & Freud Sigmund. (1949). 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, 1949.
MLA (9th ed.) Citation
Freud, Sigmund, and Freud Sigmund. Group Psychology and the Analysis of the Ego. Banam, 1949.
Warning: These citations may not always be 100% accurate.