Müller-Freienfels, R. (1920). Psychologie der Religion. Psychologie der Religion.
Chicago Style (17th ed.) CitationMüller-Freienfels, Richard. "Psychologie Der Religion." Psychologie Der Religion 1920.
MLA (8th ed.) CitationMüller-Freienfels, Richard. "Psychologie Der Religion." Psychologie Der Religion, 1920.
Warning: These citations may not always be 100% accurate.