@book{146755,
	author = {Busby, John F.},
	title = {Geochemistry of water in aquifers and confining units of the northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wymoming},
	publisher = {U.S. G.P.O.},
	year = {1994.},
	series = {Regional aquifer-system analysis--Northern Great Plains},
	address = {Washington}
}