Não informado. (1946). Occupational Medicine. American Medical Association.
Chicagoスタイル(17版)引用形式Não informado. Occupational Medicine. Chicago, Ill: American Medical Association, 1946.
MLA(8版)引用形式Não informado. Occupational Medicine. American Medical Association, 1946.
警告: この引用は必ずしも正確ではありません.