| Reference | {Deposit:: LEFOND,S.J.,1973, BRAZILIAN MINING: RELAXED GOVT. ATT. PAVE}{Deposit:: FOR EXPLOITING CRIT. RES: MIN.ENG.,VOL.25:11, P.31-45.}{Deposit:: ROCHA,A.J.D., 1973, PERFIL ANALITICO DO CHUMBO: DNPM BOLETIM}{Deposit:: RIO DE JANEIRO, 76PAGES}{Deposit:: JOHNSON,R.F., 1962, LEAD-ZINC DEP. AT THE BOQUIRA DIST., STA}{Deposit:: BAHIA, BRAZIL:USGS B1110-A}{Deposit:: ANDERY, P.A, 1961, CONCENTRACAO DE MINEIRO OXIDADO DE CHUMBO}{Deposit:: CENTRATION OF LEAD OXIDE MINERALS): SAO PAOLO,ESCOLA TECNICA}{Deposit:: THESIS, MAP, TABLES, 125 P.} |