APA (7th ed.) Citation

United States. Bureau of Standards. (1939). Journal of Research of the National Bureau of Standards, Sept. 1939, Vol. 23, No. 3. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Standards. Journal of Research of the National Bureau of Standards, Sept. 1939, Vol. 23, No. 3. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Bureau of Standards. Journal of Research of the National Bureau of Standards, Sept. 1939, Vol. 23, No. 3. [s.n.], 1939.