APA citiranje

Cunningham, W. P., & Cunningham, M. A. (2003). Environmental science: A global concern. New York, N.Y: McGraw-Hill, Glencoe.

Trích dẫn kiểu Chicago

Cunningham, William P., và Mary Ann Cunningham. Environmental Science: A Global Concern. New York, N.Y: McGraw-Hill, Glencoe, 2003.

MLA citiranje

Cunningham, William P., và Mary Ann Cunningham. Environmental Science: A Global Concern. New York, N.Y: McGraw-Hill, Glencoe, 2003.