United States. Department of Health, Education, and Welfare. (1932). Frequency of pneumonia among iron and steel workers. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare. Frequency of Pneumonia Among Iron and Steel Workers. [Washington]: GPO, 1932.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare. Frequency of Pneumonia Among Iron and Steel Workers. GPO, 1932.
Warning: These citations may not always be 100% accurate.