Workers with mechanical mucking shovel at work in tunnel, Gorge Dam, November 4, 1923

Chicago citation style
Workers with mechanical mucking shovel at work in tunnel, Gorge Dam, November 4, 1923. 1923. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ww-swps/id/202. (Accessed June 22, 2018.)
APA citation style
(1923) Workers with mechanical mucking shovel at work in tunnel, Gorge Dam, November 4, 1923. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ww-swps/id/202
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/ww-swps/id/202>.
Note: These citations are programmatically generated and may be incomplete.