APA (7th ed.) Citation

Cunningham, W. P., & Cunningham, M. A. (2004). Principles of environmental science: Inquiry and applications (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Cunningham, William P., and Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. 2nd ed. Dubuque, IA: McGraw-Hill, 2004.

MLA (9th ed.) Citation

Cunningham, William P., and Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. 2nd ed. McGraw-Hill, 2004.