Mortimer, C. (1985). Elements of pronunciation: Intensive practice for intermediate and more advanced students. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoMortimer, Colin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Cambridge: Cambridge University Press, 1985.
Trích dẫn MLAMortimer, Colin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Cambridge: Cambridge University Press, 1985.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.