Axford, B. (2002). Politics (2nd.). Routledge.
Lua i Stíl Chicago (17ú heag.)Axford, Barry. Politics. 2nd. London: Routledge, 2002.
Lua MLA (9ú heag.)Axford, Barry. Politics. 2nd. Routledge, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.