APA (7th ed.) Citation

United States. Federal Highway Administration. Office of Highway Policy Information. (2001). Vehicle travel information system (VTRIS). U.S. Dept. of Transportation, Federal Highway Administration, Office of Highway Policy Information.

Chicago Style (17th ed.) Citation

United States. Federal Highway Administration. Office of Highway Policy Information. Vehicle Travel Information System (VTRIS). [Washington, D.C.]: U.S. Dept. of Transportation, Federal Highway Administration, Office of Highway Policy Information, 2001.

MLA (9th ed.) Citation

United States. Federal Highway Administration. Office of Highway Policy Information. Vehicle Travel Information System (VTRIS). U.S. Dept. of Transportation, Federal Highway Administration, Office of Highway Policy Information, 2001.