National Uranium Resource Evaluation Program. Regional hydrogeochemical and stream sediment survey of the Llano NTMS Quadrangle, Texas
T. Butz
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J. French
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J. Grimes
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R. Helgerson
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P. Pritz
T.A. Weaver
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M.E. Bunker
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J.M. Jr. Hansel
R.B. Ferguson
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P.L. Tones