Kassel, K. (2014). The thinking executive's guide to sustainability (First edition.). Business Expert Press.
Chicago-Zitierstil (17. Ausg.)Kassel, Kerul. The Thinking Executive's Guide to Sustainability. First edition. New York, NY: Business Expert Press, 2014.
MLA-Zitierstil (9. Ausg.)Kassel, Kerul. The Thinking Executive's Guide to Sustainability. First edition. Business Expert Press, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.