@book{3042,
	author = {Tchobanoglous, George and  Metcalf & Eddy.},
	title = {Wastewater engineering :},
	publisher = {McGraw-Hill ;},
	year = {c1979[Reprinted 1990, 1981].},
	series = { McGraw-Hill series in civil and environmental engineering},
	address = {Boston :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/description/mh021/2001053724.html}
}