United States. National Bureau of Standards. (1940). Inner-controlled spotlamps for vehicles (after market). [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. National Bureau of Standards. Inner-controlled Spotlamps for Vehicles (after Market). [Washington]: [publisher not identified], 1940.
MLA (9th ed.) CitationUnited States. National Bureau of Standards. Inner-controlled Spotlamps for Vehicles (after Market). [publisher not identified], 1940.
Warning: These citations may not always be 100% accurate.