Não informado. (1953). Occupational health bulletin. Department of National Health and Welfare, Industrial Health Division.
Chicago Style (17th ed.) CitationNão informado. Occupational Health Bulletin. Ottawa: Department of National Health and Welfare, Industrial Health Division, 1953.
MLA (8th ed.) CitationNão informado. Occupational Health Bulletin. Department of National Health and Welfare, Industrial Health Division, 1953.
Warning: These citations may not always be 100% accurate.