Institute of Transportation Engineers. (1995). Improving traffic signal operations. Institute of Transportation Engineers.
Chicago-Zitierstil (17. Ausg.)Institute of Transportation Engineers. Improving Traffic Signal Operations. Washington, D.C: Institute of Transportation Engineers, 1995.
MLA-Zitierstil (9. Ausg.)Institute of Transportation Engineers. Improving Traffic Signal Operations. Institute of Transportation Engineers, 1995.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.