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Pillar load transfer associated with multiple-seam mining /
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| Main Author: | |
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| Other Authors: | , |
| Format: | Book |
| Language: | English |
| Published: |
Pittsburgh, Pa. :
U.S. Dept. of the Interior, Bureau of Mines,
1987.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
9066 |
| Subjects: | |
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