Marian Cox. (2010). Cambridge IGCSE First Language English Workbook (Cambridge International IGCSE) (3.). CAMBRIDGE UNIVERSITY PRESS.
Lua i Stíl Chicago (17ú heag.)Marian Cox. Cambridge IGCSE First Language English Workbook (Cambridge International IGCSE). 3. CAMBRIDGE UNIVERSITY PRESS, 2010.
Lua MLA (9ú heag.)Marian Cox. Cambridge IGCSE First Language English Workbook (Cambridge International IGCSE). 3. CAMBRIDGE UNIVERSITY PRESS, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.