APA (7th ed.) Citation

National Research Council (U.S.). Transportation Research Board. (2012). Roundabouts and emergency evacuation 2012. Transportation Research Board.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Roundabouts and Emergency Evacuation 2012. Washington, D.C.: Transportation Research Board, 2012.

MLA (9th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Roundabouts and Emergency Evacuation 2012. Transportation Research Board, 2012.