Ruggiero, V. (2006). Understanding political violence: A criminological analysis. Open University Press/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Ruggiero, Vincenzo. Understanding Political Violence: A Criminological Analysis. Maidenhead, Berkshire: Open University Press/McGraw-Hill, 2006.
Lua MLA (9ú heag.)Ruggiero, Vincenzo. Understanding Political Violence: A Criminological Analysis. Open University Press/McGraw-Hill, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.