Ross, H. E., Walker, K. C., & Effenberger, M. J. (1980). Crash tests of small highway sign supports. Dept. of Transportation, Federal Highway Administration, [Office of Development], Implementation Division.
Chicago Style (17th ed.) CitationRoss, Hayes E., Kenneth Charles Walker, and Michael J. Effenberger. Crash Tests of Small Highway Sign Supports. Washington: Dept. of Transportation, Federal Highway Administration, [Office of Development], Implementation Division, 1980.
MLA (9th ed.) CitationRoss, Hayes E., et al. Crash Tests of Small Highway Sign Supports. Dept. of Transportation, Federal Highway Administration, [Office of Development], Implementation Division, 1980.
Warning: These citations may not always be 100% accurate.