Mining methods and costs at Braden Copper Company's mines, Sewell, Chile.

Bibliographic Details

Corporate Author:	Braden Copper Company
Other Authors:	Skinner, T. W., Webb, J. S.
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [publisher not identified], 1932.
Series:	Mines Bur. Info. Circ. No. 6565
Subjects:	Mines and mineral resources. Electronic books.
Online Access:	Connect to the full text of this electronic document