Hazards of black blasting powder in underground coal mining

Author: Harrington, D.
Additional Authors: Warncke, R. G.
Year: 1949
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7492
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 7492
Subjects: Coal mines and mining--Safety measures
Mine explosions
Explosives
Link: https://hdl.handle.net/2027/mdp.39015078534578

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