@book{331949,
	author = {Skrentner, Robert G.},
	title = {Instrumentation handbook for water & wastewater treatment plants /},
	publisher = {Lewis Publishers,},
	year = {c1988.},
	address = {Chelsea, Mich. :},
	note = {H.B},
	url = {http://www.loc.gov/catdir/enhancements/fy0744/87031206-d.html}
}