Van Gelder, S. (2014). Sustainable happiness : live simply, live well, make a difference / edited by Sarah van Gelder and the staff of YES! Magazine: Live simply, live well, make a difference (First edition.). Berrett-Koehler Publishers, Inc..
Chicago Style (17th ed.) CitationVan Gelder, Sarah. Sustainable Happiness : Live Simply, Live Well, Make a Difference / Edited by Sarah Van Gelder and the Staff of YES! Magazine: Live Simply, Live Well, Make a Difference. First edition. San Francisco: Berrett-Koehler Publishers, Inc., 2014.
MLA (9th ed.) CitationVan Gelder, Sarah. Sustainable Happiness : Live Simply, Live Well, Make a Difference / Edited by Sarah Van Gelder and the Staff of YES! Magazine: Live Simply, Live Well, Make a Difference. First edition. Berrett-Koehler Publishers, Inc., 2014.