United States. Department of Health, Education, and Welfare. (1922). Transactions of 1st annual Conference of State Sanitary Engineers, held at Washington, D.C., May 25, 1920. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare. Transactions of 1st Annual Conference of State Sanitary Engineers, Held at Washington, D.C., May 25, 1920. [Washington]: GPO, 1922.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare. Transactions of 1st Annual Conference of State Sanitary Engineers, Held at Washington, D.C., May 25, 1920. GPO, 1922.
Warning: These citations may not always be 100% accurate.