Showing 1 - 3 results of 3 for search 'Iowa Geological Survey'

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  1. 1
    Geology of Iowa
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    by Wayne I. Anderson, 1935-

    Book - 1983

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  2. 2
    The fossils and rocks of eastern Iowa
    by J. N. Rose

    Book - 1967

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  3. 3
    Water resources data

    Book - 1969

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