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  1. By: Harvard University. Museum of Comparative Zoology. Department of Mollusks. - Harvard University. Museum of Comparative Zoology. Department of Mollusks.
    Publication info: Cambridge, Mass, Dept. of Mollusks,
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Mollusks  Weekdieren
  2. By: Illinois State Geological Survey. - Frye, John Chapman,
    Publication info: Urbana, 1974
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Fauna  Glacial epoch  Grond  Illinois  Mollusks, Fossil  Weekdieren  
  3. 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