Unidentified policemen

Chicago citation style
Unidentified policemen. circa 1910s-1930s. Retrieved from the Digital Public Library of America, http://libx.bsu.edu/cdm/ref/collection/MunHisPhoto/id/1888. (Accessed June 18, 2018.)
APA citation style
(circa 1910s-1930s) Unidentified policemen. Retrieved from the Digital Public Library of America, http://libx.bsu.edu/cdm/ref/collection/MunHisPhoto/id/1888
MLA citation style
Retrieved from the Digital Public Library of America <http://libx.bsu.edu/cdm/ref/collection/MunHisPhoto/id/1888>.
Note: These citations are programmatically generated and may be incomplete.