Chalker, S., & Edmund Weiner. (1994). Oxford dictionary of English grammar. O.U.P.
Lua i Stíl Chicago (17ú heag.)Chalker, Sylvia, agus Edmund Weiner. Oxford Dictionary of English Grammar. New York: O.U.P, 1994.
Lua MLA (9ú heag.)Chalker, Sylvia, agus Edmund Weiner. Oxford Dictionary of English Grammar. O.U.P, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.