George, W. E., & Wallman, L. S. (1949). A medical examination of employees of the coal mining industry of New South Wales. Alfred Henry Pettifer, Government Printer.
Lua i Stíl Chicago (17ú heag.)George, W. E., agus L. S. Wallman. A Medical Examination of Employees of the Coal Mining Industry of New South Wales. Sydney: Alfred Henry Pettifer, Government Printer, 1949.
Lua MLA (8ú heag.)George, W. E., agus L. S. Wallman. A Medical Examination of Employees of the Coal Mining Industry of New South Wales. Alfred Henry Pettifer, Government Printer, 1949.
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