Cita APA (7th ed.)

Müller-Freienfels, R. (1920). Psychologie der Religion. de Gruyter.

Cita Chicago (17th ed.)

Müller-Freienfels, Richard. Psychologie Der Religion. Berlin: de Gruyter, 1920.

Cita MLA (8th ed.)

Müller-Freienfels, Richard. Psychologie Der Religion. de Gruyter, 1920.