Cita APA (7th ed.)

International Commission on Illumination. (1980). Light signals for road traffic control. Bureau Central de la CIE.

Cita Chicago (17th ed.)

International Commission on Illumination. Light Signals for Road Traffic Control. Paris, France: Bureau Central de la CIE, 1980.

Cita MLA (8th ed.)

International Commission on Illumination. Light Signals for Road Traffic Control. Bureau Central de la CIE, 1980.