Cunningham, W. P. (2008). Principles of Environmental Science: Inquiry and Applications (4th ed.). McGraw-Hill Higher Education.
Chicago-Zitierstil (17. Ausg.)Cunningham, William P. Principles of Environmental Science: Inquiry and Applications. 4th ed. New York: McGraw-Hill Higher Education, 2008.
MLA-Zitierstil (9. Ausg.)Cunningham, William P. Principles of Environmental Science: Inquiry and Applications. 4th ed. McGraw-Hill Higher Education, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.