APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1929). The Westland IV commercial monoplane (British): Three "Cirrus III" engines. National Advisory Committee for Aeronautics.

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. The Westland IV Commercial Monoplane (British): Three "Cirrus III" Engines. Washington, [D.C.]: National Advisory Committee for Aeronautics, 1929.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. The Westland IV Commercial Monoplane (British): Three "Cirrus III" Engines. National Advisory Committee for Aeronautics, 1929.