DOFF, A., & BECKET, C. (1993). Listening 1. Canbridge University Press.
Lua i Stíl Chicago (17ú heag.)DOFF, Adrian, agus Carolyn BECKET. Listening 1. New York: Canbridge University Press, 1993.
Lua MLA (9ú heag.)DOFF, Adrian, agus Carolyn BECKET. Listening 1. Canbridge University Press, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.