Thousands of policemen showed up in the South End to take the Sergeants' exam

Chicago citation style
Jones, Leslie, 1886-1967. Thousands of policemen showed up in the South End to take the Sergeants' exam. 1931-01. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/05741v106. (Accessed July 18, 2018.)
APA citation style
Jones, Leslie, 1886-1967, (1931-01) Thousands of policemen showed up in the South End to take the Sergeants' exam. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/05741v106
MLA citation style
Jones, Leslie, 1886-1967. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/05741v106>.
Note: These citations are programmatically generated and may be incomplete.