Engineer with model of Tacoma Narrows Bridge, September 1940

Chicago citation style
Unknown. Engineer with model of Tacoma Narrows Bridge, September 1940. 1940. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/imlsmohai/id/6530. (Accessed April 25, 2018.)
APA citation style
Unknown, (1940) Engineer with model of Tacoma Narrows Bridge, September 1940. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/imlsmohai/id/6530
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/imlsmohai/id/6530>.
Note: These citations are programmatically generated and may be incomplete.