The how of happiness

MLA

Lyubomirsky, Sonja. The How of Happiness : a Scientific Approach to Getting the Life You Want. New York, NY: Penguin Press, 2007.

APA

Lyubomirsky, S. (2007). The how of happiness : a scientific approach to getting the life you want. New York, NY: Penguin Press.

Chicago

Lyubomirsky, Sonja. The How of Happiness: A Scientific Approach to Getting the Life You Want. New York, NY: Penguin Press, 2007.