Open-pit copper mining and concentrating methods and costs, Silver Bell Unit, American Smelting and Refining Co., Pima County, Ariz. /
by W.R. Hardwick.

Description

Main Author

Hardwick, W. R. (William R.)

Related Names

United States. Bureau of Mines.
American Smelting and Refining Company.

Language(s)

English

Published

[Washington, D.C.] : U.S. Bureau of Mines, 1963.

Subjects

Copper mines and mining > Copper mines and mining / Arizona > Copper mines and mining / Arizona / Pima County.

Physical Description

72 p. : ill., maps, tables ; 27 cm.

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