APA (7th ed.) Citation

United States. Navy Department. Bureau of Aeronautics. (1932). Reconditioning of aircraft engine spark plugs. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Navy Department. Bureau of Aeronautics. Reconditioning of Aircraft Engine Spark Plugs. Washington: [publisher not identified], 1932.

MLA (9th ed.) Citation

United States. Navy Department. Bureau of Aeronautics. Reconditioning of Aircraft Engine Spark Plugs. [publisher not identified], 1932.