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  1. By: Anderson, William L. - Stewart, Peggy L.
    Publication info: Urbana, Ill, Illinois Natural History Survey, 1970
    Holding Institution: University Library, University of Illinois Urbana Champaign
  1. By: Stewart, Peggy L.
    Type: Article
    In: The University of Kansas science bulletin
    Volume: 41
    Issue: 8
    Date: 1960-12-23
    Page Range: 877--890
    Publication Info: [Lawrence], University of Kansas, [1926-1996]