Tohutoro APA (7th ed.)
Kassel, K. (2014). The thinking executive's guide to sustainability (First edition.). Business Expert Press.
Tohutoru Kātū Chicago (17th ed.)
Kassel, Kerul. The Thinking Executive's Guide to Sustainability. First edition. New York, New York (222 East 46th Street, New York, NY 10017): Business Expert Press, 2014.
Tohutoro MLA (9th ed.)
Kassel, Kerul. The Thinking Executive's Guide to Sustainability. First edition. Business Expert Press, 2014.
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