APA-Zitierstil (7. Ausg.)

(1992). Human impact on the environment: Ancient roots, current challenges. Westview Press.

Chicago-Zitierstil (17. Ausg.)

Human Impact on the Environment: Ancient Roots, Current Challenges. Boulder u.a: Westview Press, 1992.

MLA-Zitierstil (9. Ausg.)

Human Impact on the Environment: Ancient Roots, Current Challenges. Westview Press, 1992.