@book{27305,
	author = {Elsing, Morris J and Heineman, Robert Emil,},
	title = {Arizona metal production,},
	publisher = {University of Arizona},
	year = {[1936]},
	series = {Economic series,},
	address = {Tucson, Ariz.,},
	note = {University of Arizona bulletin, vol. VII, no. 2, February 15, 1936.}
}