Author : United States. Bureau of Mines
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 166
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Author : United States. Bureau of Mines
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 166
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Author : Loyal Wingate Trumbull
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 128
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Author : William Samuel Landers
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 84
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Author : United States. Department of the Interior
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ISBN:
Category : Coal mines and mining
Languages : en
Pages : 470
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Author :
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 216
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Author : United States. Office of Coal Research
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 68
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Author : Gary B. Glass
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 174
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Author :
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 76
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Author :
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 34
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Author : John W. Green
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 268
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