APA-referens (7:e uppl.)

Creel, R. E. (2014). Philosophy of religion: The basics. Wiley.

Chicago-referens (17:e uppl.)

Creel, Richard E. Philosophy of Religion: The Basics. Hoboken: Wiley, 2014.

MLA-referens (9:e uppl.)

Creel, Richard E. Philosophy of Religion: The Basics. Wiley, 2014.