THE MINING AND TREATMENT OF LOWGRADE COPPER ORES AT LOS PILARES NACOZARI WITH SPECIAL REFERENCE TO THE USE OF GISENGINES IN MINING - DOUGLASS, JAMES (SANTA CLARA UNIVERSITY, 1901)
TRANS AM INST MIN ENGI
Keywords: MINING, TREATMENT, COPPER, ORES, PILARES, NACOZARI, SPECIAL, REFERENCE, GISENGINES; CIENCIAS DE LA TIERRA Y DEL ESPACIO; GEOLOGIA; MINERALOGIA