APA (7th ed.) Citation

Martin, E. D. (1920). The behavior of crowds: A psychological study. Harper.

Chicago Style (17th ed.) Citation

Martin, Everett Dean. The Behavior of Crowds: A Psychological Study. N.Y.: Harper, 1920.

MLA (8th ed.) Citation

Martin, Everett Dean. The Behavior of Crowds: A Psychological Study. Harper, 1920.

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