Workers at construction site for Diablo Dam Powerhouse, June 20, 1931

Chicago citation style
Workers at construction site for Diablo Dam Powerhouse, June 20, 1931. 1931. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ww-swps/id/280. (Accessed October 23, 2018.)
APA citation style
(1931) Workers at construction site for Diablo Dam Powerhouse, June 20, 1931. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ww-swps/id/280
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ww-swps/id/280>.
Note: These citations are programmatically generated and may be incomplete.