Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Hardwick, W.R.

Open-Pit Copper Mining And Concentrating Methods And Costs, Silver Bell Unit, American Smelting And Refining Co., Pima County, Arizona - SEGEMARU.S.A. 1963

Departamento Del Interior De Los Estados Unidos, Circular 8153

Subjects--Index Terms: Mineral/es: Cobre