Cita APA (7a ed.)

Wolff, K. H. (1964). The sociology of Georg Simmel. Free Press.

Cita Chicago Style (17a ed.)

Wolff, Kurt H. The Sociology of Georg Simmel. New York: Free Press, 1964.

Cita MLA (9a ed.)

Wolff, Kurt H. The Sociology of Georg Simmel. Free Press, 1964.