American Political Science Association. (2003). Perspectives on politics. Cambridge University Press for the American Political Science Association.
Lua i Stíl Chicago (17ú heag.)American Political Science Association. Perspectives on Politics. New York: Cambridge University Press for the American Political Science Association, 2003.
Lua MLA (9ú heag.)American Political Science Association. Perspectives on Politics. Cambridge University Press for the American Political Science Association, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.