Burton, S. (1984). Mastering English grammar. Palgrave.
Lua i Stíl Chicago (17ú heag.)Burton, S.H. Mastering English Grammar. New York: Palgrave, 1984.
Lua MLA (9ú heag.)Burton, S.H. Mastering English Grammar. Palgrave, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.