Kaufman, J. E., & Christensen, J. F. (1972). IES lighting handbook: The standard lighting guide (5th ed.). New York: Illuminating Engineering Society.
Παραπομπή Chicago StyleKaufman, John E., and Jack F. Christensen. IES Lighting Handbook: The Standard Lighting Guide. 5th ed. New York: Illuminating Engineering Society, 1972.
Παραπομπή MLAKaufman, John E., and Jack F. Christensen. IES Lighting Handbook: The Standard Lighting Guide. 5th ed. New York: Illuminating Engineering Society, 1972.
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