@book{28805,
	author = {Schwartz, George M.},
	title = {Geology of the San Manuel copper deposit, Arizona.},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1953.},
	series = {Geological Survey professional paper 256},
	address = {Washington,},
	note = {Part of the illustrative material is folded, part in pocket.}
}