Permanent International Association of Road Congresses. (1930). Traffic regulation in large cities and their suburbs, traffic signals, design and layout of roads, and adaptation to traffic requirements in built-up areas; 2. Parking and garaging of vehicles. U.S. GPO.
Chicago Style (17th ed.) CitationPermanent International Association of Road Congresses. Traffic Regulation in Large Cities and Their Suburbs, Traffic Signals, Design and Layout of Roads, and Adaptation to Traffic Requirements in Built-up Areas; 2. Parking and Garaging of Vehicles. Washington: U.S. GPO, 1930.
MLA (9th ed.) CitationPermanent International Association of Road Congresses. Traffic Regulation in Large Cities and Their Suburbs, Traffic Signals, Design and Layout of Roads, and Adaptation to Traffic Requirements in Built-up Areas; 2. Parking and Garaging of Vehicles. U.S. GPO, 1930.