Lua APA (7ú heag.)
Butterfiels, J. (2009). Oxford a-z of english usage. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Butterfiels, Jeremy. Oxford A-z of English Usage. New Delhi: Oxford University Press, 2009.
Lua MLA (9ú heag.)
Butterfiels, Jeremy. Oxford A-z of English Usage. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.