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  1. By: Wilder, Norman. - Cofer, Henry P, - Beck, Robert - Delaware Board Of Game And Fish Commissioners.
    Publication info: Dover, Del, Delaware Board of Game and Fish Commissioners, 1951
    Holding Institution: University Library, University of Illinois Urbana Champaign
  1. By: Diller, Erich H - Beck, Robert
    Type: Article
    In: Nachrichtenblatt der Bayerischen Entomologen
    Volume: 052
    Date: 2003
    Page Range: 35--36
    Publication Info: München, Münchner Entomologische Gesellschaft,