Milling method and cost at conglomerate mill of Calumet and Hecla Consolidated Copper Company.

Bibliographic Details

Corporate Author:	Calumet and Hecla Consolidated Copper Company
Other Authors:	Benedict, C. Harry, 1876-
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [publisher not identified], 1930.
Series:	Mines Bur. Info. Circ. No. 6364
Subjects:	Milling industry. Electronic books.
Online Access:	Connect to the full text of this electronic document