Showing 1 - 2 results of 2 for search 'McKnight, Edwin Thor, 1902-1992', query time: 0.01s Refine Results
  1. 1
    Zinc and lead deposits of Northern Arkansas /

    Zinc and lead deposits of Northern Arkansas / by McKnight, Edwin Thor, 1902-1992

    Published 1935
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    Government Document Electronic eBook

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  2. 2
    Geology and ore deposits of the Rico District, Colorado /

    Geology and ore deposits of the Rico District, Colorado / by McKnight, Edwin Thor, 1902-1992

    Published 1974
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    Government Document Electronic eBook

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