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  1. Chronology and molluscan paleontology of two post-Woodfordian bogs in northeastern Illinois /
    By: Leonard, A. Byron (Arthur Byron),
    Publication info: Urbana :Illinois State Geological Survey,1974.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Fossielen  Holocene  Illinois  Kane County  Livingston County  Moerasland  Mollusks, Fossil  Paleontology  Weekdieren  
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