Clarke, Harold. “Preface.” A Polity on the Edge: Canada and the Politics of Fragmentation, by Allan Kornberg et al., University of Toronto Press, 2000, pp. 13–16, www.jstor.org/stable/10.3138/9781442602854.5. Accessed 9 May 2021.
Clarke, H. (2000). Preface. In Kornberg A., Wearing P., & Clarke H. (Authors), A Polity on the Edge: Canada and the Politics of Fragmentation (pp. 13-16). University of Toronto Press. Retrieved May 9, 2021, from http://www.jstor.org/stable/10.3138/9781442602854.5
Clarke, Harold. "Preface." In A Polity on the Edge: Canada and the Politics of Fragmentation, by Kornberg Allan, Wearing Peter, and Clarke Harold D., 13-16. University of Toronto Press, 2000. Accessed May 9, 2021. http://www.jstor.org/stable/10.3138/9781442602854.5.
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