Cunningham, W. P. (2006). Principles of environmental science inquiry and applications. McGraw-Hill.
Chicago Style (17. basım) AtıfCunningham, William P. Principles of Environmental Science Inquiry and Applications. McGraw-Hill, 2006.
MLA (8th ed.) AtıfCunningham, William P. Principles of Environmental Science Inquiry and Applications. McGraw-Hill, 2006.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..