COOPER, John R.
Geology and ore deposits of the Dragoon Quadrangle Cochise County, Arizona / by John R. Cooper and Leon T. Silver. -- Washington : United States Government Printing Office, 1964 - 196 p. + map. -- (Geological Survey Professional Paper ; 416).
Arizona
Depósitos de minerales
553(791)
Geology and ore deposits of the Dragoon Quadrangle Cochise County, Arizona / by John R. Cooper and Leon T. Silver. -- Washington : United States Government Printing Office, 1964 - 196 p. + map. -- (Geological Survey Professional Paper ; 416).
Arizona
Depósitos de minerales
553(791)