APA (7th ed.) Citation

United States. Civil Aeronautics Authority. (1940). Practical Air Navigation. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Civil Aeronautics Authority. Practical Air Navigation. [Washington]: [publisher not identified], 1940.

MLA (9th ed.) Citation

United States. Civil Aeronautics Authority. Practical Air Navigation. [publisher not identified], 1940.

Warning: These citations may not always be 100% accurate.