APA (7th ed.) Citation

(1940). Royal Air Force flying clothing card. [Royal Air Force?].

Chicago Style (17th ed.) Citation

Royal Air Force Flying Clothing Card. [England?]: [Royal Air Force?], 1940.

MLA (9th ed.) Citation

Royal Air Force Flying Clothing Card. [Royal Air Force?], 1940.

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