Institute of Transportation Engineers. (1995). Improving traffic signal operations. Institute of Transportation Engineers.
Citazione stile Chigago Style (17a edizione)Institute of Transportation Engineers. Improving Traffic Signal Operations. Washington, D.C: Institute of Transportation Engineers, 1995.
Citatione MLA (9a ed.)Institute of Transportation Engineers. Improving Traffic Signal Operations. Institute of Transportation Engineers, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.