APA

U.S. Department of Transportation. Federal Railroad Administration, . (1981). Rail-highway crossing accident/incident and inventory bulletin. No 3 calender year 1980. Washington DC: U.S. Department of Transportation. Federal Railroad Administration.

Chicago

U.S. Department of Transportation. Federal Railroad Administration, . 1981. Rail-highway crossing accident/incident and inventory bulletin. No 3 calender year 1980. Washington DC: U.S. Department of Transportation. Federal Railroad Administration.

Harvard

U.S. Department of Transportation. Federal Railroad Administration, . (1981). Rail-highway crossing accident/incident and inventory bulletin. No 3 calender year 1980. Washington DC: U.S. Department of Transportation. Federal Railroad Administration.

MLA

U.S. Department of Transportation. Federal Railroad Administration, . Rail-highway crossing accident/incident and inventory bulletin. No 3 calender year 1980. Washington DC: U.S. Department of Transportation. Federal Railroad Administration. 1981.