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  1. 1

    Near-surface geologic units exposed along Ares Vallis and in adjacent areas : a potential source of sediment at the Mars Pathfinder landing site by Treiman, Allan H.

    [Washington, D.C.] : [National Aeronautics and Space Administration], 1997
    Format: Government Document Book


  2. 2

    Geology and origin of the Chilean nitrate deposits by Ericksen, George Edward

    [Reston, Va.] : Washington, D.C. : U.S. Dept. of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. Govt. Print. Off, 1980
    Format: Government Document Book


  3. 3

    Duricrusts in tropical and subtropical landscapes. by Goudie, Andrew

    Oxford, Clarendon Press, 1973
    Format: Book


  4. 4

    Geology and origin of the Chilean nitrate deposits by Ericksen, George Edward

    Washington : U.S. Govt. Print. Off. : for sale by the Supt. of Docs., GPO, 1981
    Format: Government Document Book