CARLSON , B. (2002). COMMUNICATION SYSTEM 3/ED. MCGRAW HILL.
Lua i Stíl Chicago (17ú heag.)CARLSON , B.A. COMMUNICATION SYSTEM 3/ED. SINGAPORE: MCGRAW HILL, 2002.
Lua MLA (9ú heag.)CARLSON , B.A. COMMUNICATION SYSTEM 3/ED. MCGRAW HILL, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.