Mining and milling practices at small gold mines

Author: Gardner, E. D.
Additional Authors: Johnson, Charles H.,
Year: 1934
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:6800
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 6800
Subject: Gold mines and mining
Link: https://hdl.handle.net/2027/mdp.39015077569211

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