APA (7th ed.) Citation

Simmel, G. (1922). Die Religion. Rütten & Loening.

Chicago Style (17th ed.) Citation

Simmel, Georg. Die Religion. Frankfurt am Main: Rütten & Loening, 1922.

MLA (8th ed.) Citation

Simmel, Georg. Die Religion. Rütten & Loening, 1922.