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Mechanization of the Coal Industry in Appalachia. By: David A. Zegeer May, 1997 . ... We''ve read a lot about the history of mining in Appalachia.
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Mechanization of the Coal Industry in Appalachia. By: David A. Zegeer May, 1997 . ... We''ve read a lot about the history of mining in Appalachia.
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