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By: Simpson, Mark R.Type: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 3Date: 1990Page Range: 473--474Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Simpson, Mark R. - Boutin, StanType: ArticleIn: The Canadian field-naturalistVolume: 103Series:Issue: 3Date: 1989Page Range: 420--422Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: