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  1. By: Eklund, Carl R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 70
    Issue: 2
    Date: 1956
    Page Range: 69--76
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Polunin, Nicholas - Eklund, Carl R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 67
    Issue: 3
    Date: 1953
    Page Range: 134--137
    Publication Info: Ottawa Ottawa Field-Naturalists' Club