APA (7th ed.) Citation

Holick, A. J., & Carlson, P. J. (2008). Minimum retroreflectivity levels for blue and brown traffic signs. U.S. Dept. of Transportation, Federal Highway Administration, Turner-Fairbank Highway Research Center.

Chicago Style (17th ed.) Citation

Holick, Andrew J., and Paul J. Carlson. Minimum Retroreflectivity Levels for Blue and Brown Traffic Signs. McLean, VA: U.S. Dept. of Transportation, Federal Highway Administration, Turner-Fairbank Highway Research Center, 2008.

MLA (9th ed.) Citation

Holick, Andrew J., and Paul J. Carlson. Minimum Retroreflectivity Levels for Blue and Brown Traffic Signs. U.S. Dept. of Transportation, Federal Highway Administration, Turner-Fairbank Highway Research Center, 2008.