Analysis of 346 accidents, underground iron-ore mines, Lake Superior district

Additional Authors: Stepan, J.B., Stott, R.G., Pynnonen, R. O., Johnson, J. A.
Year: 1956
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7744
Series: Information circular / United States. Bureau of Mines ;
Report Number: 7744
Subject: Iron mines and mining--Accidents
Link: https://hdl.handle.net/2027/mdp.39015078459487

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