COOPER, John R.
Some geologic features of the Pima mining district Pima County, Arizona / by John R. Cooper. -- Washington : United States Government Printing Office, 1960 - P. 63-103 + map. -- (Geological Survey Bulletin ; 1112-C).
Arizona
Geología
55(791)
Some geologic features of the Pima mining district Pima County, Arizona / by John R. Cooper. -- Washington : United States Government Printing Office, 1960 - P. 63-103 + map. -- (Geological Survey Bulletin ; 1112-C).
Arizona
Geología
55(791)