APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1938). Rate℗--of-climb recorder. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. Rate℗--of-climb Recorder. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. Rate℗--of-climb Recorder. [s.n.], 1938.