United States. Bureau of Standards. (1930). Report of 23rd National Conference on Weights and Measures, attended by representatives from various States, held at Bureau of Standards, Washington, D.C., June 3, 4, 5, and 6, 1930. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Standards. Report of 23rd National Conference on Weights and Measures, Attended by Representatives from Various States, Held at Bureau of Standards, Washington, D.C., June 3, 4, 5, and 6, 1930. [Washington]: GPO, 1930.
MLA (9th ed.) CitationUnited States. Bureau of Standards. Report of 23rd National Conference on Weights and Measures, Attended by Representatives from Various States, Held at Bureau of Standards, Washington, D.C., June 3, 4, 5, and 6, 1930. GPO, 1930.
Warning: These citations may not always be 100% accurate.