References
- IES Lighting Handbook, Application Volume, New York: Illuminating Engineering Society of North America, latest edition.
- American National Standard Practice for Roadway Lighting, IES/ANSI RP-8–1983, New York: Illuminating Engineering Society of North America, 1983.
- IES Lighting Handbook, Reference Volume, New York: Illuminating Engineering Society of North America, latest edition. Section 5.
- Roadway Lighting Handbook, Washington, DC, U.S. Department of Transportation, Federal Highway Administration, 1978.
- “Lighting Roadway Safety Rest Areas,” Journal of the Illuminating Engineering Society, Vol. 4, No. 1, October 1974, p. 75.