Cita APA (7th ed.)

Wolff, K. H. (1950). The sociology of Georg Simmel. Free Press of Glencoe.

Cita Chicago (17th ed.)

Wolff, Kurt H. The Sociology of Georg Simmel. Londres: Free Press of Glencoe, 1950.

Cita MLA (9th ed.)

Wolff, Kurt H. The Sociology of Georg Simmel. Free Press of Glencoe, 1950.