Looking east on the completed Lake Washington Floating Bridge over the east portal, Seattle, October 2, 1940

Chicago citation style
Simmer. Looking east on the completed Lake Washington Floating Bridge over the east portal, Seattle, October 2, 1940. 1940. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/transportation/id/1004. (Accessed October 24, 2018.)
APA citation style
Simmer, (1940) Looking east on the completed Lake Washington Floating Bridge over the east portal, Seattle, October 2, 1940. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/transportation/id/1004
MLA citation style
Simmer. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/transportation/id/1004>.
Note: These citations are programmatically generated and may be incomplete.