APA (7th ed.) Citation

McGonigal, K. (2012). The willpower instinct: How self-control works,why it matters,and what you can do to get more of it. Penguin Group.

Chicago Style (17th ed.) Citation

McGonigal, Kelly. The Willpower Instinct: How Self-control Works,why It Matters,and What You Can Do to Get More of It. New York: Penguin Group, 2012.

MLA (8th ed.) Citation

McGonigal, Kelly. The Willpower Instinct: How Self-control Works,why It Matters,and What You Can Do to Get More of It. Penguin Group, 2012.