APA (7th ed.) Citation

(1935). Memorandum for aviators, July 2, 1935. [s.n.].

Chicago Style (17th ed.) Citation

Memorandum for Aviators, July 2, 1935. [Washington]: [s.n.], 1935.

MLA (9th ed.) Citation

Memorandum for Aviators, July 2, 1935. [s.n.], 1935.

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