@book{27329,
	author = {Gilluly, James, and Geological Survey (U.S.)},
	title = {Geology and ore deposits of the Ajo quadrangle, Arizona,},
	publisher = {University of Arizona},
	year = {[1937]},
	series = {Geological series,},
	address = {Tucson, Ariz.,},
	note = {University of Arizona bulletin. Vol VIII, no. 1, January 1, 1937.}
}