Search Results - (("Mines and mineral resources Pennsylvania") OR ("Mines and natural resource Pennsylvania"))

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    Mineral resources of the Elders ridge quadrangle, Pennsylvania by Stone, Ralph W. (Ralph Walter), 1876-1964

    Published: Govt. Print. Off., 1905
    Description: 4 volumes in 1 : illustrations, plates, maps, diagrams ; 24 cm.
    Government Document Book
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    Mineral resources of the Elders ridge quadrangle, Pennsylvania

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