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Selected geologic factors affecting mining of the Pittsburgh coalbed

Published Year

• 1970-1979 (1)

Subject

• Coal mines and mining--Pennsylvania (1) *
• Coal mines and mining--West Virginia (1)
• Methane (1) *

Author

• Bench, B. M. (1)
• Deul, Maurice. (1)
• Diamond, W. P. (1)
• McCulloch, C. M. (1)

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