APA (7th ed.) Citation

Hood, R. W., Spilka, B., & Hill, P. C. (2009). The psychology of religion: An empirical approach (4th ed.). The Guilford Press.

Chicago Style (17th ed.) Citation

Hood, Ralph W., Bernard Spilka, and Peter C. Hill. The Psychology of Religion: An Empirical Approach. 4th ed. New York [etc.]: The Guilford Press, 2009.

MLA (9th ed.) Citation

Hood, Ralph W., et al. The Psychology of Religion: An Empirical Approach. 4th ed. The Guilford Press, 2009.