Mining practices, methods, and costs at mine no. 5 of the Marquette Range, Michigan

Author: Graff, W. W.
Year: 1930
Document Type: USBI
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.11:6380
Series: Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number: 6380
Subject: Hematite--Michigan
Link: https://hdl.handle.net/2027/mdp.39015077576034

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