Flak

Chicago citation style
War Department. Office of the Chief Signal Officer. (8/1/1866 - 9/18/1947). Flak. 1943. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6050297. (Accessed June 19, 2018.)
APA citation style
War Department. Office of the Chief Signal Officer. (8/1/1866 - 9/18/1947), (1943) Flak. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6050297
MLA citation style
War Department. Office of the Chief Signal Officer. (8/1/1866 - 9/18/1947). Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6050297>.
Note: These citations are programmatically generated and may be incomplete.