Milling methods and costs at Spring Hill concentrator of Montana Mines Corporation, Helena, Mont.

Bibliographic Details
Corporate Author:	Montana Mines Corp
Other Authors:	Grant, L. A.
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [publisher not identified], 1931.
Series:	Mines Bur. Info. Circ. No. 6411
Subjects:	Ore-dressing > Montana. Electronic books.
Online Access:	Connect to the full text of this electronic document

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