Cita APA (7a ed.)

Van Gelder, S. (2014). Sustainable happiness: Live simply, live well, make a difference (First edition.). Berrett-Koehler Publishers.

Cita Chicago Style (17a ed.)

Van Gelder, Sarah. Sustainable Happiness: Live Simply, Live Well, Make a Difference. First edition. San Francisco: Berrett-Koehler Publishers, 2014.

Cita MLA (8a ed.)

Van Gelder, Sarah. Sustainable Happiness: Live Simply, Live Well, Make a Difference. First edition. Berrett-Koehler Publishers, 2014.