APA (7th ed.) Citation

Bogardus, E. S. 1. (1920). Essentials of social psychology (New and enl. ed.). University of Southern California Press.

Chicago Style (17th ed.) Citation

Bogardus, Emory Stephen 1882. Essentials of Social Psychology. New and enl. ed. Los Angeles: University of Southern California Press, 1920.

MLA (9th ed.) Citation

Bogardus, Emory Stephen 1882. Essentials of Social Psychology. New and enl. ed. University of Southern California Press, 1920.