@book{12981,
	author = {Sedlak, Richard.},
	title = {Phosphorus and nitrogen removal from municipal wastewater :},
	publisher = {Lewis Publishers,},
	year = {c1991.},
	address = {[Chelsea, Mich.] :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0729/91029578-d.html}
}