United States. Bureau of Standards. (1927). Report of 20th National Conference on Weights and Measures, attended by representatives from various States, held at Bureau of Standards, Washington, D.C., May 24, 25, 26, and 27, 1927. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Standards. Report of 20th National Conference on Weights and Measures, Attended by Representatives from Various States, Held at Bureau of Standards, Washington, D.C., May 24, 25, 26, and 27, 1927. [Washington]: GPO, 1927.
MLA (9th ed.) CitationUnited States. Bureau of Standards. Report of 20th National Conference on Weights and Measures, Attended by Representatives from Various States, Held at Bureau of Standards, Washington, D.C., May 24, 25, 26, and 27, 1927. GPO, 1927.
Warning: These citations may not always be 100% accurate.