Recent developments in the mining industry

Author: Turner, Scott.
Year: 1930
Document Type: USBI
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.11:6374
Series: Information circular / Bureau of Mines ;
Report Number: 6374
Subject: Mines and mineral resources--United States
Link: https://hdl.handle.net/2027/mdp.39015077576349

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