Cita APA (7th ed.)

Transportation Research Board. (1982). Traffic control devices and traffic signal systems. Transportation Research Board.

Cita Chicago (17th ed.)

Transportation Research Board. Traffic Control Devices and Traffic Signal Systems. Washington, D.C: Transportation Research Board, 1982.

Cita MLA (9th ed.)

Transportation Research Board. Traffic Control Devices and Traffic Signal Systems. Transportation Research Board, 1982.