Alternative incandescent traffic signal lamps and systems for improved optical and energy efficiency.

APA Citation

United States. Federal Highway Administration. Traffic Systems Division., Lighting Sciences Inc. (1985). Alternative incandescent traffic signal lamps and systems for improved optical and energy efficiency. Washington, D.C.: U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology .

MLA Citation

United States. Federal Highway Administration. Traffic Systems Division, and Lighting Sciences Inc. Alternative Incandescent Traffic Signal Lamps And Systems for Improved Optical And Energy Efficiency. Washington, D.C.: U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology , 1985.