Second annual Conference on the Weights and Measures of the United States : held at the Bureau of Standards, Washington, D.C., April 12 and 13, 1906

Chicago citation style
Conference on the Weights and Measures of the United States (2nd : 1906 : Washington, D.C.). Second annual Conference on the Weights and Measures of the United States : held at the Bureau of Standards, Washington, D.C., April 12 and 13, 1906. 1906. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011444669. (Accessed November 14, 2018.)
APA citation style
Conference on the Weights and Measures of the United States (2nd : 1906 : Washington, D.C.), (1906) Second annual Conference on the Weights and Measures of the United States : held at the Bureau of Standards, Washington, D.C., April 12 and 13, 1906. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011444669
MLA citation style
Conference on the Weights and Measures of the United States (2nd : 1906 : Washington, D.C.). Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011444669>.
Note: These citations are programmatically generated and may be incomplete.