APA (7th ed.) Citation

Simmel, G., Wolff, K. H., Bendix, R., & Hughes, E. C. (1964). Conflict ; The web of group-affiliations. Free Press.

Chicago Style (17th ed.) Citation

Simmel, Georg, Kurt H. Wolff, Reinhard Bendix, and Everett Cherrington Hughes. Conflict ; The Web of Group-affiliations. New York [etc.]: Free Press, 1964.

MLA (9th ed.) Citation

Simmel, Georg, et al. Conflict ; The Web of Group-affiliations. Free Press, 1964.