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  1. By: Robitaille, Gilles
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 2
    Date: 1979
    Page Range: 217--217
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Robitaille, Gilles
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 2
    Date: 1979
    Page Range: 216--217
    Publication Info: Ottawa Ottawa Field-Naturalists' Club