Não informado. (1937). Industrial hygiene digest. Industrial Hygiene Foundation of America.
Chicagoスタイル(17版)引用形式Não informado. Industrial Hygiene Digest. Pittsburgh, Pa: Industrial Hygiene Foundation of America, 1937.
MLA(8版)引用形式Não informado. Industrial Hygiene Digest. Industrial Hygiene Foundation of America, 1937.
警告: この引用は必ずしも正確ではありません.