APA

Transportation Research Record 1254, Highway operations c. a. t. c., . (1990). Traffic control devices for highways, work zones, and railroad grade crossings 1990. Washington DC: Transportation Research Record 1254.

Chicago

Transportation Research Record 1254, Highway operations capacity and traffic control, . 1990. Traffic control devices for highways, work zones, and railroad grade crossings 1990. Washington DC: Transportation Research Record 1254.

Harvard

Transportation Research Record 1254, Highway operations c. a. t. c., . (1990). Traffic control devices for highways, work zones, and railroad grade crossings 1990. Washington DC: Transportation Research Record 1254.

MLA

Transportation Research Record 1254, Highway operations capacity and traffic control, . Traffic control devices for highways, work zones, and railroad grade crossings 1990. Washington DC: Transportation Research Record 1254. 1990.