APA (7th ed.) Citation

United States. National Advisory Committee for Aeronautics. (1939). Activation of hydrocarbons and octane number. [s.n.].

Chicago Style (17th ed.) Citation

United States. National Advisory Committee for Aeronautics. Activation of Hydrocarbons and Octane Number. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. National Advisory Committee for Aeronautics. Activation of Hydrocarbons and Octane Number. [s.n.], 1939.