APA (7th ed.) Citation

Roer, P. O., & McLaughlin, W. A. (1970). Safety aspects of intersection control devices. Ontario Dept. of Highways.

Chicago Style (17th ed.) Citation

Roer, Paul O., and W. A. McLaughlin. Safety Aspects of Intersection Control Devices. [Toronto]: Ontario Dept. of Highways, 1970.

MLA (9th ed.) Citation

Roer, Paul O., and W. A. McLaughlin. Safety Aspects of Intersection Control Devices. Ontario Dept. of Highways, 1970.