United States. Navy Department. Bureau of Aeronautics. (1921). Airship piloting. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Navy Department. Bureau of Aeronautics. Airship Piloting. Washington: U.S. GPO, 1921.
MLA (9th ed.) CitationUnited States. Navy Department. Bureau of Aeronautics. Airship Piloting. U.S. GPO, 1921.
Warning: These citations may not always be 100% accurate.