APA (7th ed.) Citation

Hailer, F. (1932). Prayer: A study in the history and psychology of religion. Oxford University Press.

Chicago Style (17th ed.) Citation

Hailer, Friedrich. Prayer: A Study in the History and Psychology of Religion. New York: Oxford University Press, 1932.

MLA (9th ed.) Citation

Hailer, Friedrich. Prayer: A Study in the History and Psychology of Religion. Oxford University Press, 1932.