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  1. By: Kershaw, Gerald Peter, - University of Alberta. Department of Geography.
    Publication info: 1983
    Holding Institution: University of Alberta Library
  1. By: Edgar, D. R. - Kershaw, Gerald Peter,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 108
    Issue: 2
    Date: 1994
    Page Range: 156--161
    Publication Info: Ottawa Ottawa Field-Naturalists' Club