| References: |
- Deposit:: MINING JOURNAL, CHILE: CODELCO PLANS FOR LOWER GRADES: V.
- Deposit:: 288, NO. 7396, 1977, P. 388.
- Deposit:: ENGINEERING AND MINING JOURNAL, CHIL* CODELCO PONDERS
- Deposit:: MAJOR CHANGES IN ADMINISTRATION OF KEY COPPER MINES: V.
- Deposit:: 179, NO. 11, 1978, P. 36.
- Deposit:: ENGINEERING AND MINING JOURNAL, CHIL* CODELCO SIGNS FIRST
- Deposit:: CONTRACTS FOR LONG-TERM EXPANSION OF EL TENIENTE: V.
- Deposit:: 179, NO. 7, 1978, P. 34, 37.
- Deposit:: CORPORACION NACIONAL DEL COBRE CODELCO CHILE, ANNUAL REPORT,
- Deposit:: 1976.
- Deposit:: 1979-1980 WORLD MINES REGISTER, COMPANIES BY COUNTRY:
- Deposit:: CHILE: SAN FRANCISCO, MILLER-FREEMAN PUBLICATIONS, 1979,
- Deposit:: P. 92.
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