Cita APA (7a ed.)

Lyubomirsky, S. a. (2008). The how of happiness: A scientific approach to getting the life you want (1a edición.). Penguin Press.

Cita Chicago Style (17a ed.)

Lyubomirsky, Sonja autor. The How of Happiness: A Scientific Approach to Getting the Life You Want. 1a edición. New York: Penguin Press, 2008.

Cita MLA (9a ed.)

Lyubomirsky, Sonja autor. The How of Happiness: A Scientific Approach to Getting the Life You Want. 1a edición. Penguin Press, 2008.