APA
Illinois. Department of Transportation, . (1972). Motorcycle in traffic accidents in Illinois - 1970. Springfield, Ill: State of Illinois. Department of Transportation.
Chicago
Illinois. Department of Transportation, . 1972. Motorcycle in traffic accidents in Illinois - 1970. Springfield, Ill: State of Illinois. Department of Transportation.
Harvard
Illinois. Department of Transportation, . (1972). Motorcycle in traffic accidents in Illinois - 1970. Springfield, Ill: State of Illinois. Department of Transportation.
MLA
Illinois. Department of Transportation, . Motorcycle in traffic accidents in Illinois - 1970. Springfield, Ill: State of Illinois. Department of Transportation. 1972.