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By: Campbell, R. E.Type: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 1Date: 1992Page Range: 27--35Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Campbell, R. E.Type: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 1Date: 1992Page Range: 24--26Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Campbell, R. E.Type: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 1Date: 1992Page Range: 19--23Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: