(2003). IESNA guide for photometric measurements of roadway sign installations. New York: Illuminating Engineering Society of North America.
Παραπομπή Chicago StyleIESNA Guide for Photometric Measurements of Roadway Sign Installations. New York: Illuminating Engineering Society of North America, 2003.
Παραπομπή MLAIESNA Guide for Photometric Measurements of Roadway Sign Installations. New York: Illuminating Engineering Society of North America, 2003.
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