Greenbaum, S. (1996). The Oxford English grammar. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Greenbaum, Sidney. The Oxford English Grammar. London: Oxford University Press, 1996.
Lua MLA (8ú heag.)Greenbaum, Sidney. The Oxford English Grammar. Oxford University Press, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.