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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Morris, Michael M. J. - Penak, Brenda L. - Lemon, R E - Bird, David M. (David Michael),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 96
    Issue: 2
    Date: 1982
    Page Range: 139--142
    Publication Info: Ottawa Ottawa Field-Naturalists' Club