Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.