Johnson, Robert F. 1916-
Geology and ore deposits of the Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil / by Robert F. Johnson. -- Washington : United States Government Printing Office, 1962 - 37 p. + 1 map. -- (Geological Survey Professional Paper ; 341-B).
Depósitos de minerales
Geología
Minas Gerais ( Brasil )
553(815.1)
Geology and ore deposits of the Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil / by Robert F. Johnson. -- Washington : United States Government Printing Office, 1962 - 37 p. + 1 map. -- (Geological Survey Professional Paper ; 341-B).
Depósitos de minerales
Geología
Minas Gerais ( Brasil )
553(815.1)