Colors of light signals = Couleurs des signaux lumineux = Farben von Signallichtern
Subtitle: official recommendations of the International Commission on Illumination = Recommendations officielles de la Commission Internationale de l'Eclairage = offizielle Empfenlungen der Internationalen Beleuchtungskommission.
Series: Publication CIE -- 2.2
Publisher: International Commission on Illumination
Published: 1975
Place of publication: Paris
Language: eng
Notes: Text in English, French and German.