@book{257175,
	author = {United States.},
	title = {National drinking water contaminant occurrence data base - development strategy /},
	publisher = {United States Environmental Protection Agency, Office of Water,},
	year = {1997.},
	address = {[Washington, DC] :},
	edition = {Revised December 1997.},
	note = {"EPA-815-D-97-005."},
	url = {http://purl.fdlp.gov/GPO/gpo73644}
}