Wren. (2005). English Grammer & Con. S.Chand.
Lua i Stíl Chicago (17ú heag.)Wren. English Grammer & Con. New Delhi: S.Chand, 2005.
Lua MLA (9ú heag.)Wren. English Grammer & Con. S.Chand, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.