Hewings, M. (2007). English pronunciation in use: Dvanced self-study and classroom use. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Hewings, Martin. English Pronunciation in Use: Dvanced Self-study and Classroom Use. New York: Cambridge University Press, 2007.
Lua MLA (9ú heag.)Hewings, Martin. English Pronunciation in Use: Dvanced Self-study and Classroom Use. Cambridge University Press, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.