Avery, P., & Ehrlich, S. (1992). Teaching American English pronunciation. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Avery, Peter, agus Susan Ehrlich. Teaching American English Pronunciation. Oxford [England] ; New York: Oxford University Press, 1992.
Lua MLA (8ú heag.)Avery, Peter, agus Susan Ehrlich. Teaching American English Pronunciation. Oxford University Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.