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  1. By: Mackie, G L
    Type: Article
    In: American malacological bulletin
    Volume: 5
    Date: 1987
    Page Range: 31--39
    Publication Info: [Hattiesburg, Miss.?], [American Malacological Union], 1983-
  2. By: Mackie, G L
    Type: Article
    In: American malacological bulletin
    Volume: 4
    Date: 1986
    Page Range: 116--116
    Publication Info: [Hattiesburg, Miss.?], [American Malacological Union], 1983-
  3. By: Mackie, G L - Topping, Jane M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 102
    Issue: 4
    Date: 1988
    Page Range: 617--626
    Publication Info: Ottawa Ottawa Field-Naturalists' Club