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    Estimate of known recoverable reserves of coking coal in Letcher County, Ky by Wallace, Joseph J.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1953
    Description: vi, 26 pages, 12 unnumbered leaves of plates : illustrations ; 27 cm.
    Government Document Book
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    Estimate of known recoverable reserves of coking coal in Letcher County, Ky
  2. 2

    Estimate of known recoverable reserves of coking coal in Harlan County, Ky by Wallace, Joseph J.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1954
    Description: vi, 26 pages : illustrations ; 27 cm.
    Government Document Book
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    Estimate of known recoverable reserves of coking coal in Harlan County, Ky

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