United States. Bureau of Standards. (1912). Weights and measures; 7th annual conference of representatives from various States, held at Bureau of Standards, Washington, D.C., Feb. 15 and 16, 1912. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Standards. Weights and Measures; 7th Annual Conference of Representatives from Various States, Held at Bureau of Standards, Washington, D.C., Feb. 15 and 16, 1912. [Washington]: GPO, 1912.
MLA (9th ed.) CitationUnited States. Bureau of Standards. Weights and Measures; 7th Annual Conference of Representatives from Various States, Held at Bureau of Standards, Washington, D.C., Feb. 15 and 16, 1912. GPO, 1912.
Warning: These citations may not always be 100% accurate.