APA (7th ed.) Citation

District of Columbia. Director of Traffic. (1930). Traffic and motor vehicle regulations for D.C. GPO.

Chicago Style (17th ed.) Citation

District of Columbia. Director of Traffic. Traffic and Motor Vehicle Regulations for D.C. [Washington]: GPO, 1930.

MLA (9th ed.) Citation

District of Columbia. Director of Traffic. Traffic and Motor Vehicle Regulations for D.C. GPO, 1930.