APA (7th ed.) Citation

United States. Navy Department. (1920). Notes on operation of nonrigid airships. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Navy Department. Notes on Operation of Nonrigid Airships. Washington: U.S. GPO, 1920.

MLA (9th ed.) Citation

United States. Navy Department. Notes on Operation of Nonrigid Airships. U.S. GPO, 1920.

Warning: These citations may not always be 100% accurate.