Não informado. (1949). Industrial Medicine and Surgery. American Association of Industrial Physicians and Surgeons.
Chicago-Zitierstil (17. Ausg.)Não informado. Industrial Medicine and Surgery. Miami, Fla: American Association of Industrial Physicians and Surgeons, 1949.
MLA-Zitierstil (8. Ausg.)Não informado. Industrial Medicine and Surgery. American Association of Industrial Physicians and Surgeons, 1949.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.