APA (7th ed.) Citation

United States. National Bureau of Standards. (1940). Technical news bulletin of the National Bureau of Standards, Dec. 1940. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. National Bureau of Standards. Technical News Bulletin of the National Bureau of Standards, Dec. 1940. [Washington]: [publisher not identified], 1940.

MLA (9th ed.) Citation

United States. National Bureau of Standards. Technical News Bulletin of the National Bureau of Standards, Dec. 1940. [publisher not identified], 1940.

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