Thomson, A. (1961). A Practical English Grammar Exercises-1 Vol I. O.U.P.
Lua i Stíl Chicago (17ú heag.)Thomson, A. A Practical English Grammar Exercises-1 Vol I. London: O.U.P, 1961.
Lua MLA (9ú heag.)Thomson, A. A Practical English Grammar Exercises-1 Vol I. O.U.P, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.