APA (7th ed.) Citation

Purtill, R. L. (2009). Reason to believe: Why faith makes sense (New ed.). Ignatius Press.

Chicago Style (17th ed.) Citation

Purtill, Richard L. Reason to Believe: Why Faith Makes Sense. New ed. San Francisco: Ignatius Press, 2009.

MLA (9th ed.) Citation

Purtill, Richard L. Reason to Believe: Why Faith Makes Sense. New ed. Ignatius Press, 2009.