Photograph of Stack Equipment in the National Archives Division of Maps and Charts

Chicago citation style
General Services Administration. National Archives and Records Service. Office of Educational Programs. Education Division. ?-4/1/1985. Photograph of Stack Equipment in the National Archives Division of Maps and Charts. 1939-01-20. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/12168664. (Accessed July 15, 2018.)
APA citation style
General Services Administration. National Archives and Records Service. Office of Educational Programs. Education Division. ?-4/1/1985, (1939-01-20) Photograph of Stack Equipment in the National Archives Division of Maps and Charts. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/12168664
MLA citation style
General Services Administration. National Archives and Records Service. Office of Educational Programs. Education Division. ?-4/1/1985. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/12168664>.
Note: These citations are programmatically generated and may be incomplete.