APA (7th ed.) Citation

Heiler, F., McComb, S., & Park, J. E. (1958). Prayer: A study in the history and psychology of religion. Oxford University Press.

Chicago Style (17th ed.) Citation

Heiler, Friedrich, Samuel McComb, and John Edgar Park. Prayer: A Study in the History and Psychology of Religion. New York: Oxford University Press, 1958.

MLA (8th ed.) Citation

Heiler, Friedrich, et al. Prayer: A Study in the History and Psychology of Religion. Oxford University Press, 1958.