(1978). Manual on uniform traffic control devices for streets and highways. Washington, D C: U S Department of Transportation.
Citación estilo ChicagoManual on Uniform Traffic Control Devices for Streets and Highways. Washington, D C: U S Department of Transportation, 1978.
Cita MLAManual on Uniform Traffic Control Devices for Streets and Highways. Washington, D C: U S Department of Transportation, 1978.
Warning: These citations may not always be 100% accurate.