Donna, S., & Hancock, M. (2007). English pronunciation in use. Intermediate: CD-ROM user's guide. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Donna, Sylvie, agus Mark Hancock. English Pronunciation in Use. Intermediate: CD-ROM User's Guide. Cambridge: Cambridge University Press, 2007.
Lua MLA (9ú heag.)Donna, Sylvie, agus Mark Hancock. English Pronunciation in Use. Intermediate: CD-ROM User's Guide. Cambridge University Press, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.