APA (7th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Traffic Signals Systems Committee. (1985). Research problem statements: Traffic signal systems. Transportation Research Board, National Research Council.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Traffic Signals Systems Committee. Research Problem Statements: Traffic Signal Systems. Washington, D.C: Transportation Research Board, National Research Council, 1985.

MLA (9th ed.) Citation

National Research Council (U.S.). Transportation Research Board. Traffic Signals Systems Committee. Research Problem Statements: Traffic Signal Systems. Transportation Research Board, National Research Council, 1985.