@book{145669,
	author = {Stewart, Kenneth C.},
	title = {Guidebook on the geology, history, and surface-water contamination and remediation in the area from Denver to Idaho Springs, Colorado},
	publisher = {U.S. G.P.O.},
	year = {1994.},
	series = {U.S. Geological Survey circular},
	address = {Washington}
}