Hewings, M. (1999). Pronunciation plus: Practice through interaction. North American English. Teacher's Manual. Cambridge University Press.
Chicago-Zitierstil (17. Ausg.)Hewings, Martin. Pronunciation Plus: Practice Through Interaction. North American English. Teacher's Manual. New York, USA: Cambridge University Press, 1999.
MLA-Zitierstil (9. Ausg.)Hewings, Martin. Pronunciation Plus: Practice Through Interaction. North American English. Teacher's Manual. Cambridge University Press, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.