USA National Highway Traffic Safety Administration. (19). Manual for police traffic services personnel performance evaluation system. U.S. Dept. of Transportation.
Chicago-Zitierstil (17. Ausg.)USA National Highway Traffic Safety Administration. Manual for Police Traffic Services Personnel Performance Evaluation System. Washington, D.C: U.S. Dept. of Transportation, 19.
MLA-Zitierstil (9. Ausg.)USA National Highway Traffic Safety Administration. Manual for Police Traffic Services Personnel Performance Evaluation System. U.S. Dept. of Transportation, 19.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.