APA (7th ed.) Citation

International Commission on Illumination. (1975). Colors of light signals: Official recommendations. Bureau Central de la CIE.

Chicago Style (17th ed.) Citation

International Commission on Illumination. Colors of Light Signals: Official Recommendations. Paris: Bureau Central de la CIE, 1975.

MLA (8th ed.) Citation

International Commission on Illumination. Colors of Light Signals: Official Recommendations. Bureau Central de la CIE, 1975.

Warning: These citations may not always be 100% accurate.