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1by Pratt, Walden P.Subjects: “...Zinc ores Middle West....”
Published 1995
Government Document Book -
2Published 1990Subjects: “...Mines and mineral resources Middle West Congresses....”
Government Document Book -
3Published 1985Subjects: “...Core drilling Middle West....”
Government Document Microform Book -
4by Pratt, Walden P.Subjects: “...Mines and mineral resources Middle West....”
Published 1995
Government Document Book -
5Published 1991Subjects: “...Petrology Middle West Drawings....”
Government Document Map -
6Published 1992Subjects: “...Shale Middle West Maps....”
Government Document Map -
7Published 1996Subjects: “...Carbonate rocks Middle West Maps....”
Government Document Map -
8by Pratt, Walden P.Subjects: “...Carbonate rocks Middle West....”
Published 1995
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Government Document eBook -
9by Pratt, Walden P.Subjects: “...Mines and mineral resources Middle West....”
Published 1995
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Government Document eBook