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  1. Paleontology : Part II. Carboniferous and cretaceous /
    By: Williston, Samuel Wendell, - Kansas Geological Survey.
    Publication info: [Lawrence, Kansas :Kansas Geological Survey],1900.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  2. Paleontology : pt. 1. Upper Cretaceous /
    By: Williston, Samuel Wendell, - Kansas Geological Survey.
    Publication info: [Lawrence, Kansas :Kansas Geological Survey],1898.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
    View Book