Thomas, A. (1973). A practical English Grammar- Ex- I to VI. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Thomas, A. A Practical English Grammar- Ex- I to VI. London: Oxford University Press, 1973.
Lua MLA (9ú heag.)Thomas, A. A Practical English Grammar- Ex- I to VI. Oxford University Press, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.