@book{50935,
	author = {Beard, James M.},
	title = {Environmental chemistry in society /},
	publisher = {CRC Press/Taylor & Francis,},
	year = {c2009},
	address = {Boca Raton, FL :},
	url = {http://www.loc.gov/catdir/toc/ecip0819/2008023733.html}
}