Eatwell, R., & Wright, A. (1993). Contemporary political ideologies. Westview Press.
Lua i Stíl Chicago (17ú heag.)Eatwell, Roger, agus Anthony Wright. Contemporary Political Ideologies. Boulder: Westview Press, 1993.
Lua MLA (8ú heag.)Eatwell, Roger, agus Anthony Wright. Contemporary Political Ideologies. Westview Press, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.