| Reference | {Deposit:: AIRGRAM FROM U.S. EMBASSY IN LIMA, DEC. 21, 1978}{Deposit:: FREEMAN PUBLICATIONS, INC., SAN FRANCISCO, 1979, P. 152.}{Deposit:: RIO TINTO ZINC MINING ANALYSIS SYSTEM. LEAD AND ZINC MINES}{Deposit:: OF THE WORLD (ZINC). MARCH 25, 1975, P. 22.}{Deposit:: OF THE WORLD (LEAD). MARCH 25, 1975, P. 21.}{Deposit:: ENGINEERING AND MINING JOURNAL INTERNATIONAL DIRECTORY OF}{Deposit:: MINING AND MINERAL PROCESSING OPERATIONS. PERU. MCGRAW-}{Deposit:: HILL, INC., NEW YORK, 1978, P. 328.}{Deposit:: RIO TINTO ZINC MINING COST ANALYSIS SYSTEM. PERFORMANCE}{Deposit:: ANALYSIS. FEBRUARY 25, 1975, P. 264, 292, 411.} |