Crash reduction factors for education and enforcement /
prepared by Helmut T. Zwahlen and Kiran R. Suravaram.

APA Citation

Zwahlen, H. T., Suravaram, K., Ohio. Department of Transportation. Office of Research and Development., Ohio Research Institute for Transportation and the Environment. (2007). Crash reduction factors for education and enforcement. Athens, OH: Ohio University, Ohio Research Institute for Transportation and the Environment.

MLA Citation

Zwahlen, Helmut T, Kiran Suravaram, Ohio. Department of Transportation. Office of Research and Development, and Ohio Research Institute for Transportation and the Environment. Crash Reduction Factors for Education And Enforcement. Athens, OH: Ohio University, Ohio Research Institute for Transportation and the Environment, 2007.