Стиль цитування APA (7-ме видання)

Environmental Careers Organization & ebrary, Inc. (2004). The ECO guide to careers that make a difference. Island Press.

Чикаго стиль цитування (17-те видання)

Environmental Careers Organization та Inc ebrary. The ECO Guide to Careers That Make a Difference. Washington: Island Press, 2004.

Стиль цитування MLA (9-ме видання)

Environmental Careers Organization та Inc ebrary. The ECO Guide to Careers That Make a Difference. Island Press, 2004.