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  1. By: Gibbons, G S
    Type: Article
    In: Journal and proceedings of the Royal Society of New South Wales
    Volume: 114
    Issue: 2
    Date: 1981-09
    Page Range: 37--42
    Publication Info: Sydney C. Potter, Acting. Govt. Printer 1877-
  2. By: Gibbons, G S
    Type: Article
    In: Journal and proceedings of the Royal Society of New South Wales
    Volume: 104
    Issue: 3-4
    Date: 1971-01-10
    Page Range: 151--152
    Publication Info: Sydney C. Potter, Acting. Govt. Printer 1877-
  3. By: Gibbons, G S
    Type: Article
    In: Journal and proceedings of the Royal Society of New South Wales
    Volume: 105
    Issue: 1-2
    Date: 1972-04-16
    Page Range: 39--42
    Publication Info: Sydney C. Potter, Acting. Govt. Printer 1877-