APA (7th ed.) Citation

Helfaer, P. M. (1972). The psychology of religious doubt. Beacon Press.

Chicago Style (17th ed.) Citation

Helfaer, Philip M. The Psychology of Religious Doubt. Boston: Beacon Press, 1972.

MLA (9th ed.) Citation

Helfaer, Philip M. The Psychology of Religious Doubt. Beacon Press, 1972.