APA-Zitierstil (7. Ausg.)

Doyle, K., Heizmann, S., & Stubbs, T. (1999). The complete guide to environmental careers in the 21st century: The Environmental Careers Organization (3. ed.). Island Press.

Chicago-Zitierstil (17. Ausg.)

Doyle, Kevin, Sam Heizmann, und Tanya Stubbs. The Complete Guide to Environmental Careers in the 21st Century: The Environmental Careers Organization. 3. ed. Washington [u.a.]: Island Press, 1999.

MLA-Zitierstil (9. Ausg.)

Doyle, Kevin, et al. The Complete Guide to Environmental Careers in the 21st Century: The Environmental Careers Organization. 3. ed. Island Press, 1999.