Gaya APA

Ph.D., K, M. (2012). The Willpower Instinct how self-control works, why it matters, and what you can do to get more of it . New York: Avery.

Gaya MLA

Ph.D., Kellly, McGonigal,. "The Willpower Instinct how self-control works, why it matters, and what you can do to get more of it". New York: Avery, 2012. Text.