APA (7th ed.) Citation

United States. National Bureau of Standards. (1942). Acoustic performance of 16-millimeter sound motion-picture projectors. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. National Bureau of Standards. Acoustic Performance of 16-millimeter Sound Motion-picture Projectors. [Washington]: [publisher not identified], 1942.

MLA (9th ed.) Citation

United States. National Bureau of Standards. Acoustic Performance of 16-millimeter Sound Motion-picture Projectors. [publisher not identified], 1942.

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