APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1938). Modern manufacturing equipment of Ernst Heinkel Airplane Works. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. Modern Manufacturing Equipment of Ernst Heinkel Airplane Works. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. Modern Manufacturing Equipment of Ernst Heinkel Airplane Works. [s.n.], 1938.