Hornby, A. S. (1975). Guide To Pattern And Usage In English (2nd ed.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Hornby, A. S. Guide To Pattern And Usage In English. 2nd ed. New Delhi: Oxford University Press, 1975.
Lua MLA (9ú heag.)Hornby, A. S. Guide To Pattern And Usage In English. 2nd ed. Oxford University Press, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.