APA (7th ed.) Citation

National Research Council (U.S.). Transportation Research Board. (2011). Traffic signal systems, 2011. Transportation Research Board.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Traffic Signal Systems, 2011. Washington, D.C.: Transportation Research Board, 2011.

MLA (9th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Traffic Signal Systems, 2011. Transportation Research Board, 2011.

Warning: These citations may not always be 100% accurate.