APA-referens (7:e uppl.)
Nitti, M. A. (2014). Trophy Effect: Destroying self-doubt, discovering your true self, and taking control of your life forever! [Motivational Press, Inc.].
Chicago-referens (17:e uppl.)
Nitti, Michael A. Trophy Effect: Destroying Self-doubt, Discovering Your True Self, and Taking Control of Your Life Forever! [Carlsbad, California]: [Motivational Press, Inc.], 2014.
MLA-referens (9:e uppl.)
Nitti, Michael A. Trophy Effect: Destroying Self-doubt, Discovering Your True Self, and Taking Control of Your Life Forever! [Motivational Press, Inc.], 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.