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  1. By: Carl, G. Clifford
    Type: Article
    In: The Canadian field-naturalist
    Volume: 77
    Issue: 3
    Date: 1963
    Page Range: 178--178
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Carl, G. Clifford - Wilby, G. V.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 59
    Issue: 1
    Date: 1945
    Page Range: 28--30
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Carl, G. Clifford
    Type: Article
    In: The Canadian field-naturalist
    Volume: 59
    Issue: 1
    Date: 1945
    Page Range: 25--25
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Carl, G. Clifford
    Type: Article
    In: The Canadian field-naturalist
    Volume: 65
    Issue: 2
    Date: 1951
    Page Range: 83--83
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Carl, G. Clifford
    Type: Article
    In: The Canadian field-naturalist
    Volume: 62
    Issue: 5
    Date: 1948
    Page Range: 158--159
    Publication Info: Ottawa Ottawa Field-Naturalists' Club