Roach, Kent. “Preface.” Regulating Traffic Safety, by Martin Friedland et al., University of Toronto Press, Toronto; Buffalo; London, 1990, pp. vii-2, www.jstor.org/stable/10.3138/j.ctt2ttq3h.3. Accessed 16 June 2021.
Roach, K. (1990). Preface. In Friedland M., Trebilcock M., & Roach K. (Authors), Regulating Traffic Safety (pp. Vii-2). Toronto; Buffalo; London: University of Toronto Press. Retrieved June 16, 2021, from http://www.jstor.org/stable/10.3138/j.ctt2ttq3h.3
Roach, Kent. "Preface." In Regulating Traffic Safety, by Friedland Martin, Trebilcock Michael, and Roach Kent, Vii-2. Toronto; Buffalo; London: University of Toronto Press, 1990. Accessed June 16, 2021. http://www.jstor.org/stable/10.3138/j.ctt2ttq3h.3.
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