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  1. 1
    Many faces of geology
    Publicado 1969

    Conference Proceeding Libro
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  2. 2
    General geology in the vicinity of northern Iowa
    Publicado 1972

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  3. 3
    Guide book /

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  4. 4
    General and environmental geology of Cedar Falls/Waterloo and surrounding area, northeast Iowa /
    por Walters, James C
    Publicado 1996

    Conference Proceeding Libro
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  5. 5
    Stratigraphy and paleoenvironments of Mississippian strata in Keokuk and Washington counties, southeast Iowa : prepared for the 54th Tri-State Geological Field Conference, October 5-7, 1990, Iowa City, Iowa /
    Publicado 1990

    Government Document Conference Proceeding Libro
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  6. 6
    The many faces of geology
    Publicado 1969

    Conference Proceeding Libro
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  7. 7
    Guidebook
    Publicado 1937

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    Conference Proceeding
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  8. 8
    Guide book; northeast Iowa
    Publicado 1948

    Conference Proceeding Libro
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  9. 9
    33rd annual Tri-State Field Conference, October 17-19, 1969;

    Conference Proceeding Libro
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  10. 10
    Guide book, Twelfth annual Tri-State Geological Field Conference : Northeast Iowa, 1948
    Publicado 1948

    Conference Proceeding Libro
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