APA aipamena

Horst J Helle. (2015). The social thought of Georg Simmel. Sage.

Chicago Style aipamena

Horst J Helle. The Social Thought of Georg Simmel. London: Sage, 2015.

MLA aipamena

Horst J Helle. The Social Thought of Georg Simmel. Sage, 2015.