Ore deposits of the Helena mining region, Montana / by Adolph Knopf.

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Bibliographic Details
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Main Author:	Knopf, Adolph, 1882-1966 (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1913.
Series:	Bulletin (Geological Survey (U.S.)) ; no. 527.
Subjects:	Ore deposits > Montana > Helena. Mines and mineral resources > Montana. Geology > Montana. Geology. Mines and mineral resources. Montana.

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Call Number:	I 19.3:527
I 19.3:527	Available