Simmons, George Clarke 1923-

Geology and mineral resources of the Barâo de Cocais area minas Gerais, Brazil / by George C. Simmons. -- Washington : United States Government Printing Office, 1968 - 46 p. + 1 map. -- (Geological Survey Professional Paper ; 341-H).


Depósitos de minerales
Geología
Minas Gerais ( Brasil )

553(815.1)
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