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  1. By: McNicholl, Martin K. - England, Raymond E. - Koes, Rudolf F.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 86
    Issue: 4
    Date: 1972
    Page Range: 380--382
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Koes, Rudolf F.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 1
    Date: 1997
    Page Range: 110--111
    Publication Info: Ottawa Ottawa Field-Naturalists' Club