ALEXANDER, L. (1980). Mainline: Beginers B (student' book). Longman.
Lua i Stíl Chicago (17ú heag.)ALEXANDER, L.G. Mainline: Beginers B (student' Book). London: Longman, 1980.
Lua MLA (9ú heag.)ALEXANDER, L.G. Mainline: Beginers B (student' Book). Longman, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.