Author: | Ellenberger, John L. |
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Year: | 1979 |
Document Type: | BMRA |
Issuing Agency: | Dept. of Interior, Bureau of Mines, |
SUDOC: | I 28.23:8365 |
Series: | Report of investigations / Bureau of Mines ; |
Report Number: | 8365 |
Subjects: | Ground control (Mining) |
Rock mechanics | |
Coal mines and mining--West Virginia | |
Link: | https://hdl.handle.net/2027/mdp.39015078482208 |