Reference | {Deposit:: COMPANY MONTHLY-YEAR MINING-MILLING OPERATION COSTS 1975-76}{Deposit:: COMPANY MAPS-UNDERGROUND,TOPO,GEOLOGY,DRILLING,FLOW SHEETS}{Deposit:: ASARCO MEXICANA,S.A. UNIDAD INGUARAN MICHOACAN,1973 GENERAL}{Deposit:: ANVARIO ESTADISTICO DE LA MINERIAMEXICANA 1974,CRNNR 1975}{Deposit:: LOS RECURSOS NATURALES DE MEXICO METALICOS, MEXICO 1969}{Reserve-Resource:: ENGINEERING AND MINING JOURNAL, NOBEMBER 1980, P. 111.} |