@book{29846,
	author = {Keefer, William Richard, and Troyer, M. L.},
	title = {Geology of the Shotgun Butte area, Fremont County, Wyoming /},
	publisher = {U.S. G.P.O.,},
	year = {1964.},
	address = {Washington, [D.C.] :},
	note = {Three folded plates in pocket.}
}