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By: Telfer, Edmund S.Type: ArticleIn: The Canadian field-naturalistVolume: 108Series:Issue: 2Date: 1994Page Range: 186--194Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Telfer, Edmund S.Type: ArticleIn: The Canadian field-naturalistVolume: 85Series:Issue: 3Date: 1971Page Range: 231--234Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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