APA

Commission Internationale de l'Eclairage, International Commission on Illumination & CIE Publication 74. (1988). Roadsigns. Wien: Commission Internationale de l'Eclairage.

Chicago

Commission Internationale de l'Eclairage, International Commission on Illumination and CIE Publication 74. 1988. Roadsigns. Wien: Commission Internationale de l'Eclairage.

Harvard

Commission Internationale de l'Eclairage, International Commission on Illumination and CIE Publication 74. (1988). Roadsigns. Wien: Commission Internationale de l'Eclairage.

MLA

Commission Internationale de l'Eclairage, International Commission on Illumination and CIE Publication 74. Roadsigns. Wien: Commission Internationale de l'Eclairage. 1988.