Lua APA (7ú heag.)

Swan, M. (2003). Practical English usage (Fifth impression.). Oxford University Press.

Lua i Stíl Chicago (17ú heag.)

Swan, Michael. Practical English Usage. Fifth impression. Oxford ; New York: Oxford University Press, 2003.

Lua MLA (8ú heag.)

Swan, Michael. Practical English Usage. Fifth impression. Oxford University Press, 2003.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.