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    Investigations relating to gold and silver by United States Geological Survey in 1907 by Geological Survey (U.S.)

    Published: G.P.O., 1908
    Description: 136 pages : maps ; 23 cm.
    Government Document Book
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    Investigations relating to gold and silver by United States Geological Survey in 1907
  2. 2

    Strategic minerals investigations, 1943 by Geological Survey (U.S.)

    Published: [U.S. Govt. Print. Office], 1944
    Description: 285 pages : illustrations, maps ; 24 cm + 29 maps (some color).
    Government Document Book
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    Strategic minerals investigations, 1943

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