Cita APA (7a ed.)

Wolff, K. H. (1969). The sociology of Georg Simmel (4th ed.). The Free Press.

Cita Chicago Style (17a ed.)

Wolff, Kurt H. The Sociology of Georg Simmel. 4th ed. New York: The Free Press, 1969.

Cita MLA (8a ed.)

Wolff, Kurt H. The Sociology of Georg Simmel. 4th ed. The Free Press, 1969.