@book{167173,
	author = {Gannett, Marshall W. and Caldwell, Rodney R.},
	title = {Geologic framework of the Willamette Lowland Aquifer system, Oregon and Washington},
	publisher = {U.S. G.P.O.},
	year = {1998.},
	series = {U.S. Geological Survey professional paper},
	address = {Washington, DC},
	note = {Eight folded col. maps in pocket.}
}