Cita APA

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

Citación estilo Chicago

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

Cita MLA

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