APA
Hewings M., . (2004). Pronounciation practice activities. New York: Cambridge Univerity Press.
Chicago
Hewings Martin, . 2004. Pronounciation practice activities. New York: Cambridge Univerity Press.
Harvard
Hewings M., . (2004). Pronounciation practice activities. New York: Cambridge Univerity Press.
MLA
Hewings Martin, . Pronounciation practice activities. New York: Cambridge Univerity Press. 2004.