Zimbalist. Circus Maximus. Brookings Institution Press.
Lua i Stíl Chicago (17ú heag.)Zimbalist. Circus Maximus. Brookings Institution Press.
Lua MLA (9ú heag.)Zimbalist. Circus Maximus. Brookings Institution Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.