APA

Mortimer C., . (2000). Elements of Pronunciation. New York: Cambridge University Press.

Chicago

Mortimer C, . 2000. Elements of Pronunciation. New York: Cambridge University Press.

Harvard

Mortimer C., . (2000). Elements of Pronunciation. New York: Cambridge University Press.

MLA

Mortimer C, . Elements of Pronunciation. New York: Cambridge University Press. 2000.