Não informado. (1949). Industrial Medicine and Surgery. American Association of Industrial Physicians and Surgeons.
Citace podle Chicago (17th ed.)Não informado. Industrial Medicine and Surgery. Miami, Fla: American Association of Industrial Physicians and Surgeons, 1949.
Citace podle MLA (8th ed.)Não informado. Industrial Medicine and Surgery. American Association of Industrial Physicians and Surgeons, 1949.
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