Cunningham, W. P. (2004). Principles of environmental science: Inquiry and Applications. Boston, MA: McGraw-Hill.
Chicago-stil citatCunningham, William P. Principles of Environmental Science: Inquiry and Applications. Boston, MA: McGraw-Hill, 2004.
MLA-referensCunningham, William P. Principles of Environmental Science: Inquiry and Applications. Boston, MA: McGraw-Hill, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.