Use of steel sets in underground coal

Author: Stears, J. H.
Additional Authors: Hay, K. E., Serbousek, M. O.
Year: 1984
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:8992
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 8992
Subjects: Ground control (Mining)
Mine timbering
Link: https://hdl.handle.net/2027/mdp.39015078458778

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