Wallace, Roberts M.  1915- <br/><br/>
Geology and mineral resources of the Pico de Itabirito district Minas Gerais, Brazil / 
by Roberts M. Wallace. 
 -- Washington :   United States Government Printing Office,   1965 
 - 68 p. + 9 map. -- 
 (Geological Survey Professional Paper  ;  341-F).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Depósitos de minerales<br/>Geología<br/>Minas Gerais ( Brasil )
<br/><br/><label>Universal Decimal Class. No.: </label>553(815.1)