United States. Department of Health, Education, and Welfare. (1928). Efficiencies of painters' respirators filtering lead paint, benzol, and vitreous enamel sprays. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare. Efficiencies of Painters' Respirators Filtering Lead Paint, Benzol, and Vitreous Enamel Sprays. [Washington]: GPO, 1928.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare. Efficiencies of Painters' Respirators Filtering Lead Paint, Benzol, and Vitreous Enamel Sprays. GPO, 1928.
Warning: These citations may not always be 100% accurate.