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Chicago-Zitierstil (17. Ausg.)U.S. Departament of Transportation. Safety Design and Operational Practices for Streets and Highways. Washington, D.C: U.S. Departament of Transportation, 1980.
MLA-Zitierstil (9. Ausg.)U.S. Departament of Transportation. Safety Design and Operational Practices for Streets and Highways. U.S. Departament of Transportation, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.