APA način citiranja

Kassel, K. (2014). The Thinking Executive’s Guide to Sustainability. Business Expert Press.

Čikaški stil citiranja

Kassel, Kerul. The Thinking Executive’s Guide to Sustainability. Business Expert Press, 2014.

MLA način citiranja

Kassel, Kerul. The Thinking Executive’s Guide to Sustainability. Business Expert Press, 2014.

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