@book{30003,
	author = {Cooper, John R. and Silver, Leon T.},
	title = {Geology and ore deposits of the Dragoon quadrangle, Cochise county, Arizona,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1964.},
	address = {Washington,},
	note = {Part of illustrative matter in pocket.}
}