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- Deposit:: LEFOND, S.J., 1973, BRAZILIAN MINING: RELAXED GOV T ATTITUDE
- Deposit:: THE WAY FOR EXPLOITING CRITICAL RESERVES: MIN. ENG. V.25
- Deposit:: PG.31-45.
- Deposit:: ROCHA, A.J.D., 1973, PERFIL ANALITICO DO CHUMBO: DNPM BOLETI
- Deposit:: RIO DE JANEIRO, 76P.
- Deposit:: AUGUST 25, 1975: DOURADO ROCHA, A.O., 1973, ANALYTICAL PROFI
- Deposit:: LEAD [PORT]: D.N.P.M., MIN. MIN. ENER., BOL. NO. B, 74 P.
- Deposit:: BASIC DOCUMENT, 1970, CONTRIBUTIONS TO THE GEO-ECONOMIC DEVE
- Deposit:: OF SAO PAOLO AND PARANA [PORT.]: D.N.P.M., MIN. MIN. ENER, P
- Deposit:: ESP. NO. 10, 111 P. (AUTHORY PINTO COELHO, FRANCISCO DAS CHA
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