United States. National Bureau of Standards. (1934). Technical news bulletin of the National Bureau of Standards. The Bureau.
Cita Chicago (17th ed.)United States. National Bureau of Standards. Technical News Bulletin of the National Bureau of Standards. [Washington]: The Bureau, 1934.
Cita MLA (8th ed.)United States. National Bureau of Standards. Technical News Bulletin of the National Bureau of Standards. The Bureau, 1934.
Atenció: Aquestes cites poden no estar 100% correctes.