Cita APA (7a ed.)

Keller, T. (2008). The reason for God ; belief in an age of skepticism. Dutton.

Cita Chicago Style (17a ed.)

Keller, Timothy. The Reason for God ; Belief in an Age of Skepticism. New York: Dutton, 2008.

Cita MLA (9a ed.)

Keller, Timothy. The Reason for God ; Belief in an Age of Skepticism. Dutton, 2008.