Van Gelder, S. (2014). Sustainable happiness: Live simply, live well, make a difference (First edition.). BK, Berrett-Koehler Publishers, Inc., San Francisco, a BK Life Book.
Cita Chicago Style (17a ed.)Van Gelder, Sarah. Sustainable Happiness: Live Simply, Live Well, Make a Difference. First edition. San Francisco: BK, Berrett-Koehler Publishers, Inc., San Francisco, a BK Life Book, 2014.
Cita MLA (8a ed.)Van Gelder, Sarah. Sustainable Happiness: Live Simply, Live Well, Make a Difference. First edition. BK, Berrett-Koehler Publishers, Inc., San Francisco, a BK Life Book, 2014.
Precaución: Estas citas no son 100% exactas.