APA
(2005). Camebridge IELTS 4: examination papers from university Cambridge ESOL examination:english for speakers of other languages. New York: Cambridge university press.
Chicago
2005. Camebridge IELTS 4: examination papers from university Cambridge ESOL examination:english for speakers of other languages. New York: Cambridge university press.
Harvard
(2005). Camebridge IELTS 4: examination papers from university Cambridge ESOL examination:english for speakers of other languages. New York: Cambridge university press.
MLA
Camebridge IELTS 4: examination papers from university Cambridge ESOL examination:english for speakers of other languages. New York: Cambridge university press. 2005.