Cunningham, W. P. (2004). Principles of Environmental Science: Inquiry and Applicaions. McGraw-Hill Higher Education, Boston.
Chicago-Zitierstil (17. Ausg.)Cunningham, William P. Principles of Environmental Science: Inquiry and Applicaions. New York: McGraw-Hill Higher Education, Boston, 2004.
MLA-Zitierstil (9. Ausg.)Cunningham, William P. Principles of Environmental Science: Inquiry and Applicaions. McGraw-Hill Higher Education, Boston, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.