References
TOQUEPALA: A BRIEF HISTORY, PP 48-51.TRANS. AIME, VOL 211, P. 262-266.PURSER, W. F., 1971, METAL-MINING IN PERU PAST AND PRESENT:PRAEGER, NEW YORK, 339 PGS.SCOTT, O., 1974, CUAJONE AND TOQUEPALA, IN ANDEAN-PERUVIANTIMES, VOL. 34, NO. 1764, P. 47.ANDEAN TIMES, 1974, MISC. INFO.: LIMA, PERU: 10/74, VOL. 34,NO. 1763.ENGINEERING AND MINING JOURNAL; 1974, P.258.ENGINEERING AND MINING JOURNAL, TOQUEPALA: PERU'S FIRSTMAJOR COPPER COMPLEX, 11/79, P.125-128.ENGINEERING AND MINING JOURNAL, THE TOQUEPALA OREBODY, 4/60.AMERICAN MINING CONGRESS JOURNAL, HOW THE TOQUEPALA PROJECTRUNS, VOL. 55, 1969.SHIRLEY/CAMPBELL/DEJONG - RECOVERY OF MOLYBDENITE ATTOQUEPALA, MINING ENGINEERING, VOL.19, 1967, 7 PAGES.BARUA, VICTOR R., EL PROYECTO DE TOQUEPALA, MINERIA,SEPTEMBER-OCTOBER 1957, PP 204-208.ROTHER, EBERHARD G. 20 ANOS DE TRABAJO EN LA MINA DETOQUEPALA, SOUTHERN PERU COPPER CORPORATION, 1976, PP 1-16SOUTHERN PERU COPPER CORPORATION, LA MINA DE TOQUEPALA, 3 PPMINING ENGINEERING, TOQUEPALA, NOVEMBER 1969, PP 79-83.ASPECTOS DE LA GEOLOGIA DE TOQUEPALA, 6 PAGESMINING WORLD, HOW SOUTHERN PERU STRIPPED 20,000,000 TONS OFTOQUEPALA WASTE IN FIRST YEAR, VOL.19, 1957, PP 50-52.ENGINEERING AND MINING JOURNAL, TOQUEPALA IS ONE OF THEWORLD'S MOST PROSPEROUS COPPER OPERATIONS, 11/84, P.61-63.MCNEILL, HARRY L. & CHARLES S. BEECH, COMMINUTION AT SANMANUEL AND TOQUEPALA, INT'L MINING, 12/85, PG. 15-20MINING MAGAZINE, 11/80, P. 493ENGINEERING AND MINING JOURNAL, 2/88 P. 70.INTERNATIONAL MINING, 4/88, P. 100.LATIN AMERICAN MINING LETTER, 2/29/88 V7N4 P.5WORLD MINING, 12/80, P.64.WORLD MINING, 2/82, P.66.WORLD MINING, 9/81, P.75,76.MINER NEWSPAPER, AUG. 17-30, 1981, P.38.ENGINEERING AND MINING JOURNAL, 4/82, P.11,13.PRODUCTION COST UPDATE, VOL. II/ NO. 2, 6/30/84, P.9.ENGINEERING AND MINING JOURNAL, 1/83, P.13.WORLD MINING EQUIPMENT, 2/88, P.3.MINERALS FOR EXPORT, NO.7, 12/89-1/90, P.7.AMERICAN METAL MARKET, 12/4/91, P.2.SKILLINGS', 12/7/91, P.8.MINING JOURNAL, 12/6/91, P.413.ENGINEERING AND MINING JOURNAL, 1/92, P.14.SKILLINGS', 1/4/92, P.13.SOUTHWESTERN PAY DIRT, 1/92, P.19A.MINING JOURNAL, SUPPLEMENT, 1/22/93, P.4,5.LATIN AMERICAN MINING LETTER, V 12/N 8, 5/31/93, P.7.SOUTHWESTERN PAY DIRT, 6/93, P.19B.MINING JOURNAL, 5/21/93, P.365.MINING RECORD, 3/2/94, P.15.AMERICAN METAL MARKET, 3/25/94, P.5.SKILLINGS', 3/26/94, P.11.METALS WEEK, 3/28/94, P.6.MINING JOURNAL, 5/94, P.322.DILLARD, GARY, LAST OF BIG 4 COPPER FIRMS INVESTS DOWNSOUTH, SOUTHWESTERN PAY DIRT, 11/94, P.4A-11A.SOUTHERN PERU COPPER CORP., MEMORIA '93, P.26-28.MINING RECORD, V 106/N 14, 4/12/95, P.1.SOUTHERN PERU COPPER CORP., MEMORIA '94, P.23-27.PHELPS DODGE CORP., 1994 10-K, P.9,13,14.PHELPS DODGE CORP., 1994 ANNUAL REPORT, P.18.SOUTHERN PERU COPPER CORP, 1989 ANNUAL REPORT P.9.ASARCO INC., 1993 10-K, P.A15-A19.ASARCO INC., 1991 ANNUAL REPORT, P.33,35.SOUTHERN PERU COPPER CORP., 1992 ANNUAL REPORT, P.9.ASARCO INC., 1994 10-K, P.A18,20,21.