Balloons - Observation - Balloons. Observation balloon watching over Dirigible in Hangar

Chicago citation style
War Department. 1789-9/18/1947. Balloons - Observation - Balloons. Observation balloon watching over Dirigible in Hangar. 1917-01-01/1918-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/20808376. (Accessed June 25, 2018.)
APA citation style
War Department. 1789-9/18/1947, (1917-01-01/1918-12-31) Balloons - Observation - Balloons. Observation balloon watching over Dirigible in Hangar. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/20808376
MLA citation style
War Department. 1789-9/18/1947. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/20808376>.
Note: These citations are programmatically generated and may be incomplete.