Sabey, B. E. (1980). Road safety and value for money. Transport and Road Research Laboratory, Accident Investigation Division.
Chicago-Zitierstil (17. Ausg.)Sabey, Barbara E. Road Safety and Value for Money. Crowthorne, Berk: Transport and Road Research Laboratory, Accident Investigation Division, 1980.
MLA-Zitierstil (9. Ausg.)Sabey, Barbara E. Road Safety and Value for Money. Transport and Road Research Laboratory, Accident Investigation Division, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.