References
- IES Energy Management Committee, Recommended Procedure for Lighting Power Limit Determination, IES LEM-1–1982, New York: Illuminating Engineering Society of North America, 1981.
- IES Energy Management Committee, Recommended Procedure for Lighting Energy Limit Determination for Buildings, IES LEM-2–1984, New York: Illuminating Engineering Society of North America, 1984.
- John E. Kaufman, and Howard Haynes (editors), IES Lighting Handbook, 1981 Application Volume, New York: Illuminating Engineering Society of North America, 1981.
- John E. Kaufman and Jack F. Christensen (editors), IES Lighting Handbook, 1984 Reference Volume, New York: Illuminating Engineering Society of North America, 1984.