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  1. By: Buech, Richard R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 3
    Date: 1974
    Page Range: 317--321
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Buech, Richard R. - Timm, Robert M. - Siderits, Karl P.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 4
    Date: 1977
    Page Range: 413--414
    Publication Info: Ottawa Ottawa Field-Naturalists' Club