@book{37711,
	author = {Cunnigham, William P. and Cunnigham, Mary Ann},
	title = {Principles of Environmental science :},
	publisher = {McGnaw Hill,},
	year = {c2006.},
	address = {New York :},
	edition = {3rd ed.},
	note = {Includes glossary, index and appendices.}
}