Airplanes - Inspection - Airplane engines. Testing block

Chicago citation style
War Department. 1789-9/18/1947. Airplanes - Inspection - Airplane engines. Testing block. 1917-01-01/1918-12-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/17339141. (Accessed October 17, 2018.)
APA citation style
War Department. 1789-9/18/1947, (1917-01-01/1918-12-31) Airplanes - Inspection - Airplane engines. Testing block. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/17339141
MLA citation style
War Department. 1789-9/18/1947. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/17339141>.
Note: These citations are programmatically generated and may be incomplete.