APA (7e ed.) Bronvermelding
Cunningham, W. P., & Cunningham, M. A. (2004). Principles of environmental science: Inquiry and applications (2nd ed.). McGraw-Hill Higher Education; Tata McGraw-Hill.
Chicago (17e ed.) Bronvermelding
Cunningham, William P., en Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. 2nd ed. Boston ; New Delhi: McGraw-Hill Higher Education; Tata McGraw-Hill, 2004.
MLA (9e ed.) Bronvermelding
Cunningham, William P., en Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. 2nd ed. McGraw-Hill Higher Education; Tata McGraw-Hill, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.