APA (7th ed.) Citation

Wagner, D. R., & Hofstetter, D. K. (1978). Speed advisory information for reduced visibility conditions. Dept. of Transportation, Federal Higway Administration, Offices of Research and Development.

Chicago Style (17th ed.) Citation

Wagner, Donald Robert, and Dwayne K. Hofstetter. Speed Advisory Information for Reduced Visibility Conditions. Washington: Dept. of Transportation, Federal Higway Administration, Offices of Research and Development, 1978.

MLA (9th ed.) Citation

Wagner, Donald Robert, and Dwayne K. Hofstetter. Speed Advisory Information for Reduced Visibility Conditions. Dept. of Transportation, Federal Higway Administration, Offices of Research and Development, 1978.