Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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