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By: Bowerman, William W. - Grubb, Teryl G - Bath, Alan J. - Giesy, John P. - Dawson, Gary A. - Ennnis, R. KennethType: ArticleIn: The Canadian field-naturalistVolume: 107Series:Issue: 3Date: 1993Page Range: 273--278Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Grubb, Teryl G - Bowerman, William W. - Giesy, John P. - Dawson, Gary A.Type: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 4Date: 1992Page Range: 443--453Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: