United States. Bureau of Labor Statistics & ProQuest (Firm). (1923). Rules governing the approval of head lighting devices for motor vehicles. Illuminating Engineering Society New York, N. Y. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Labor Statistics and ProQuest (Firm). Rules Governing the Approval of Head Lighting Devices for Motor Vehicles. Illuminating Engineering Society New York, N. Y. Washington: [publisher not identified], 1923.
MLA (9th ed.) CitationUnited States. Bureau of Labor Statistics and ProQuest (Firm). Rules Governing the Approval of Head Lighting Devices for Motor Vehicles. Illuminating Engineering Society New York, N. Y. [publisher not identified], 1923.
Warning: These citations may not always be 100% accurate.