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le Henry, Christopher D.
[Reston, Va.?] : U.S. Geological Survey, 1984
“...University of Texas at Austin. Bureau of Economic Geology...”[Reston, Va.?] : U.S. Geological Survey, 1984
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Government Document
Léarscáil
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le Senger, Rainer K.
Austin, Tex. : Bureau of Economic Geology, University of Texas at Austin, 1987
“...University of Texas at Austin. Bureau of Economic Geology...”Austin, Tex. : Bureau of Economic Geology, University of Texas at Austin, 1987
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Government Document
Leabhar
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le Ruppel, Stephen C.
Austin, Tex. : Bureau of Economic Geology, University of Texas at Austin, 1988
“...University of Texas at Austin. Bureau of Economic Geology...”Austin, Tex. : Bureau of Economic Geology, University of Texas at Austin, 1988
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Government Document
Leabhar
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le Woodruff, C. M.
Washington, D.C. : U.S. Dept. of Energy, 1979
“...University of Texas at Austin. Bureau of Economic Geology...”Washington, D.C. : U.S. Dept. of Energy, 1979
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Leabhar
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le Tyler, Noel
Austin, Tex. : Bureau of Economic Geology, University of Texas at Austin, 1985
“...University of Texas at Austin. Bureau of Economic Geology...”Austin, Tex. : Bureau of Economic Geology, University of Texas at Austin, 1985
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Government Document
Leabhar