National IMPACT (Organization : U.S.). Prepare. National IMPACT.
Lua i Stíl Chicago (17ú heag.)National IMPACT (Organization : U.S.). Prepare. Washington, D.C.: National IMPACT.
Lua MLA (8ú heag.)National IMPACT (Organization : U.S.). Prepare. National IMPACT.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.