A, E. (2001). English grammar 2. Etcontara Rajawali.
Lua i Stíl Chicago (17ú heag.)A, Erhans. English Grammar 2. Etcontara Rajawali, 2001.
Lua MLA (9ú heag.)A, Erhans. English Grammar 2. Etcontara Rajawali, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.