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              Sidney Tarrow, Struggle, Politics and Reform: Collective Action, Social Movements and Cycles of Protest (Ithaca: Center for Intern. Studies, Cornell Univ., 1989); Rokkan and Urwin (1983).
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              Tarrow, Sidney (1989) Struggle, Politics, and reform: Collective Action, Social Movements, and Cycles of Protest, Cor- nell, Cornell University Center for International Studies.
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              Tarrow, Sidney (1989), Struggle, Politics, and Reform: Collective Action, Social Movements and Cycles of Protest, Ithaca: Center for International Stud- ies, Cornell University.
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              Tarrow, S., S. (1989). Struggle, Politics, and reform: Collective Action, Social Movements, and Cycles of Protest, Cor- nell. Ithaca: Center for International Stud- ies, Cornell University. Rokkan and Urwin.
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