APA (7th ed.) Citation

Adams, M. M., & Adams, R. M. (1990). The problem of evil. Oxford University Press.

Chicago Style (17th ed.) Citation

Adams, Marilyn McCord, and Robert Merrihew Adams. The Problem of Evil. Oxford New York: Oxford University Press, 1990.

MLA (8th ed.) Citation

Adams, Marilyn McCord, and Robert Merrihew Adams. The Problem of Evil. Oxford University Press, 1990.