APA (7th ed.) Citation

Penn, B. J., & Weintraub, D. (2010). Why I fight: The belt is just an accessory. William Morrow.

Chicago Style (17th ed.) Citation

Penn, B. J., and David Weintraub. Why I Fight: The Belt Is Just an Accessory. New York: William Morrow, 2010.

MLA (9th ed.) Citation

Penn, B. J., and David Weintraub. Why I Fight: The Belt Is Just an Accessory. William Morrow, 2010.