Opp, K. (2009). Theories of political protest and social movements: A multidisciplinary introduction, critique, and synthesis (1. publ.). Routledge.
Lua i Stíl Chicago (17ú heag.)Opp, Karl-Dieter. Theories of Political Protest and Social Movements: A Multidisciplinary Introduction, Critique, and Synthesis. 1. publ. London [u.a]: Routledge, 2009.
Lua MLA (8ú heag.)Opp, Karl-Dieter. Theories of Political Protest and Social Movements: A Multidisciplinary Introduction, Critique, and Synthesis. 1. publ. Routledge, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.