@book{547994,
	author = {Water Environment Federation.},
	title = {Upgrading and retrofitting water and wastewater treatment plants /},
	publisher = {McGraw-Hill,},
	year = {c2005.},
	series = {WEF manual of practice ;},
	address = {New York :},
	note = {Prepared by Upgrading and Retrofitting Water and Wastewater Treatment Plants Task Force of the Water Environment Federation.},
	url = {http://www.loc.gov/catdir/toc/mh051/2004061046.html}
}