Design practices for multiple-seam room-and-pillar mines
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| Corporate Author: | |
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| Format: | Government Document Online Book |
| Language: | English |
| Published: |
Bureau of Mines, U.S. Dept. of the Interior,
1994
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| Series: | Technology news ; |
| Subjects: | |
| Online Access: | http://purl.access.gpo.gov/GPO/LPS91696 |
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| Physical Description: | [2] p. : digital, PDF file. |
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