Recognizing signs of excessive loading in underground coal mines

Author: Bauer, Eric R.
Year: 1985
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:9017
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 9017
Subject: Mine roof control
Link: https://hdl.handle.net/2027/mdp.39015078465070

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