Safety in mining in 1933

Author: Harrington, D.
Year: 1934
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:6811
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 6811
Subject: Mine safety
Link: https://hdl.handle.net/2027/mdp.39015077568924

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