Five men standing at the Pacific Milestone in downtown San Diego

Chicago citation style
Unknown. Five men standing at the Pacific Milestone in downtown San Diego. [ca. 1928] 1923/1933. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt2j49p8vh. (Accessed December 11, 2018.)
APA citation style
Unknown, ([ca. 1928] 1923/1933) Five men standing at the Pacific Milestone in downtown San Diego. Retrieved from the Digital Public Library of America, http://ark.cdlib.org/ark:/13030/kt2j49p8vh
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://ark.cdlib.org/ark:/13030/kt2j49p8vh>.
Note: These citations are programmatically generated and may be incomplete.