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Falls of roof and coal in mines operating in the Pittsburgh coal bed in Marion and Monongalia counties, W. Va.

Published Year

• 1930-1939 (1)

Subject

• Coal mine accidents (1)
• Coal mines and mining--West Virginia--Marion County (1) *
• Coal mines and mining--West Virginia--Monongalia County (1)

Author

• Geyer, John Nicholas, (1)
• Paul, J. W. (1) *

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