APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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