Mortimer, C. (1985). Elements of pronunciation: Intensive practice for intermediate and more advanced students. Cambridge: Cambridge University Press.
Chicago-tyylinen lähdeviittausMortimer, Colin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Cambridge: Cambridge University Press, 1985.
MLA-viiteMortimer, Colin. Elements of Pronunciation: Intensive Practice for Intermediate and More Advanced Students. Cambridge: Cambridge University Press, 1985.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.