APA Alıntı

Cunningham, M. A., & Cunningham, W. P. (2015). Environmental Science: A Global Concern (13.).

Chicago Stili Alıntı

Cunningham, Mary Ann, ve William P. Cunningham. Environmental Science: A Global Concern. 13. Newyork, McgrawHill, 2015.

MLA Alıntı

Cunningham, Mary Ann, ve William P. Cunningham. Environmental Science: A Global Concern. 13. 2015.