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By: Joyal, RobertType: ArticleIn: The Canadian field-naturalistVolume: 88Series:Issue: 2Date: 1974Page Range: 236--238Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Joyal, Robert - Scherrer, B.Type: ArticleIn: The Canadian field-naturalistVolume: 92Series:Issue: 3Date: 1978Page Range: 252--258Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: