APA (7th ed.) Citation

Powers, L. D., & Michael, H. L. (1961). The effects of speed and accidents of improved delination at three hazardous locations. Purdue University.

Chicago Style (17th ed.) Citation

Powers, L. D., and Harold L. Michael. The Effects of Speed and Accidents of Improved Delination at Three Hazardous Locations. Lafayette: Purdue University, 1961.

MLA (9th ed.) Citation

Powers, L. D., and Harold L. Michael. The Effects of Speed and Accidents of Improved Delination at Three Hazardous Locations. Purdue University, 1961.