APA (7th ed.) Citation

Helle, H. J. (2015). The social thought of Georg Simmel. SAGE.

Chicago Style (17th ed.) Citation

Helle, Horst Ju?rgen. The Social Thought of Georg Simmel. Los Angeles: SAGE, 2015.

MLA (9th ed.) Citation

Helle, Horst Ju?rgen. The Social Thought of Georg Simmel. SAGE, 2015.