United States. Department of Health, Education, and Welfare. (1924). Transactions of 4th annual Conference of State Sanitary Engineers, held at Washington, D.C., May 16 and 17, 1923. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare. Transactions of 4th Annual Conference of State Sanitary Engineers, Held at Washington, D.C., May 16 and 17, 1923. [Washington]: GPO, 1924.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare. Transactions of 4th Annual Conference of State Sanitary Engineers, Held at Washington, D.C., May 16 and 17, 1923. GPO, 1924.
Warning: These citations may not always be 100% accurate.