APA (7th ed.) Citation

Simmel, G., & Wolff, K. H. (1964). The sociology of Georg Simmel (1st Free Press pbk. ed.). Free Press of Glencoe.

Chicago Style (17th ed.) Citation

Simmel, Georg, and Kurt H. Wolff. The Sociology of Georg Simmel. 1st Free Press pbk. ed. New York: Free Press of Glencoe, 1964.

MLA (9th ed.) Citation

Simmel, Georg, and Kurt H. Wolff. The Sociology of Georg Simmel. 1st Free Press pbk. ed. Free Press of Glencoe, 1964.

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