Não informado. (1944). Industrial health bulletin. Department of National Health and Welfare, Industrial Health Division.
Chicagoスタイル(17版)引用形式Não informado. Industrial Health Bulletin. Ottawa: Department of National Health and Welfare, Industrial Health Division, 1944.
MLA(8版)引用形式Não informado. Industrial Health Bulletin. Department of National Health and Welfare, Industrial Health Division, 1944.
警告: この引用は必ずしも正確ではありません.