United States. Federal Railroad Administration. (1992). Highway-rail crossing and trespasser initiatives: FRA is working to improve crossing safety and prevent trespassing. U.S. Dept. of Transportation, Federal Railroad Administration.
Chicago Style (17th ed.) CitationUnited States. Federal Railroad Administration. Highway-rail Crossing and Trespasser Initiatives: FRA Is Working to Improve Crossing Safety and Prevent Trespassing. [Washington, D.C.]: U.S. Dept. of Transportation, Federal Railroad Administration, 1992.
MLA (9th ed.) CitationUnited States. Federal Railroad Administration. Highway-rail Crossing and Trespasser Initiatives: FRA Is Working to Improve Crossing Safety and Prevent Trespassing. U.S. Dept. of Transportation, Federal Railroad Administration, 1992.