@book{222551,
	author = {McKinney, Michael L. and Schoch, Robert M.},
	title = {Environmental science},
	publisher = {Jones and Bartlett Publishers},
	year = {c2007.},
	address = {Sudbury, Mass.},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0618/2006025215.html}
}