APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1939). An approximate spin design criterion for monoplanes. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. An Approximate Spin Design Criterion for Monoplanes. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. An Approximate Spin Design Criterion for Monoplanes. [s.n.], 1939.