APA (7th ed.) Citation

Leuba, J. H. (2012). The Psychological Origin and the Nature of Religion. Project Gutenberg.

Chicago Style (17th ed.) Citation

Leuba, James H. The Psychological Origin and the Nature of Religion. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Leuba, James H. The Psychological Origin and the Nature of Religion. Project Gutenberg, 2012.

Warning: These citations may not always be 100% accurate.