Geologic Factors in Predicting Coal Mine Roof-rock Stability in the Upper Kittanning Coalbed, Somerset County, Pa

Geologic Factors in Predicting Coal Mine Roof-rock Stability in the Upper Kittanning Coalbed, Somerset County, Pa
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Total Pages : 52
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ISBN-10 : UCR:31210024975953
ISBN-13 :
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Book Synopsis Geologic Factors in Predicting Coal Mine Roof-rock Stability in the Upper Kittanning Coalbed, Somerset County, Pa by :

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