@book{235280,
	author = {Sham, Chi Ho. and American Water Works Association.},
	title = {Operational guide to AWWA standard G300, source water protection},
	publisher = {American Water Works Association,},
	year = {c2010.},
	address = {Denver, Colo. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10533526}
}