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By: Pawson, T. W. - Yan, Norman David, - Ontario. Ministry of the Environment.Edition:Publication info: [Toronto, Ont.], Queen's Printer for Ontario, 1993Volume:Series:Holding Institution: Ontario Ministry of the EnvironmentSubjects:BHL Collections:
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By: Yan, Norman David,Edition:Publication info: [Toronto], Environment Ontario, c1992Volume:Series:Holding Institution: Ontario Ministry of the EnvironmentSubjects:BHL Collections:
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By: Wile, L. - Miller, G. E. - Hitchin, G. - Yan, Norman David,Type: ArticleIn: The Canadian field-naturalistVolume: 99Series:Issue: 3Date: 1985Page Range: 308--312Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: