CAMPBELL, Arthur B.
Geology and mineral deposits of the St. Regis-Superior area mineral county, Montana / by Arthur B. Campbell. -- Washington : United States Government Printing Office, 1960 - P. 545-612 + map. -- (Geological Survey Bulletin ; 1082-I).
Depósitos de minerales
Montana
553(786)
Geology and mineral deposits of the St. Regis-Superior area mineral county, Montana / by Arthur B. Campbell. -- Washington : United States Government Printing Office, 1960 - P. 545-612 + map. -- (Geological Survey Bulletin ; 1082-I).
Depósitos de minerales
Montana
553(786)