APA (7th ed.) Citation

United States. National Bureau of Standards. (1941). Typewriter ribbons and carbon paper. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. National Bureau of Standards. Typewriter Ribbons and Carbon Paper. [Washington]: [publisher not identified], 1941.

MLA (9th ed.) Citation

United States. National Bureau of Standards. Typewriter Ribbons and Carbon Paper. [publisher not identified], 1941.

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