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By: Gauthier, Maureen C. - Blokpoel, Hans, - Curtis, Steven GType: ArticleIn: The Canadian field-naturalistVolume: 90Series:Issue: 2Date: 1976Page Range: 196--199Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Blokpoel, Hans, - Gauthier, Maureen C.Type: ArticleIn: The Canadian field-naturalistVolume: 94Series:Issue: 3Date: 1980Page Range: 293--299Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: