@book{80416,
	author = {ebrary, Inc.},
	title = {Air-release, air/vacuum, and combination air valves},
	publisher = {American Water Works Association,},
	year = {c2001.},
	series = {AWWA manual ;},
	address = {Denver :},
	edition = {1st ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10572620}
}