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1
Near-surface geologic units exposed along Ares Vallis and in adjacent areas : a potential source of sediment at the Mars Pathfinder landing site
[Washington, D.C.] : [National Aeronautics and Space Administration], 1997Format: Government Document Book
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2
Geology and origin of the Chilean nitrate deposits
[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, 1980Format: Government Document Book
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3
Duricrusts in tropical and subtropical landscapes.
Oxford, Clarendon Press, 1973Format: Book
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4
Geology and origin of the Chilean nitrate deposits
Washington : U.S. Govt. Print. Off. : for sale by the Supt. of Docs., GPO, 1981Format: Government Document Book
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