@book{41967,
	author = {American Water Works Association.},
	title = {Nitrification prevention and control in drinking water},
	publisher = {American Water Works Association,},
	year = {c2013.},
	series = {AWWA manual ;},
	address = {Denver, Colo. :},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10717802}
}