Mortimer, C. (1988). Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp.
Chicago ZitierstilMortimer, Collin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp, 1988.
MLA ZitierstilMortimer, Collin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Sông Bé: Tổng hợp, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.