Geologic structures in coal mine roof /
Main Author: | Moebs, Noel N. |
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Other Authors: | Ellenberger, John L. |
Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1982.
|
Series: | Report of investigations (United States. Bureau of Mines) ;
8620. |
Subjects: |