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Placer mining methods.

Bibliographic Details
Corporate Author:	United States. Bureau of Mines
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [publisher not identified], 1922.
Series:	Mines Bur. Rpt. of Investigation No. 2315
Subjects:	Mines and mineral resources. Water-supply. Electronic books.
Online Access:	Connect to the full text of this electronic document

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