Jakeman V. Vanessa & McDowell C. Clare. (2007). Insight into IELTS Extra with Answers: Cambridge Books for Cambridge Exams. New York, Cambridge University Press, 2007.
Chicago Style (17th ed.) CitationJakeman V. Vanessa and McDowell C. Clare. Insight into IELTS Extra with Answers: Cambridge Books for Cambridge Exams. New York, Cambridge University Press, 2007, 2007.
MLA (9th ed.) CitationJakeman V. Vanessa and McDowell C. Clare. Insight into IELTS Extra with Answers: Cambridge Books for Cambridge Exams. New York, Cambridge University Press, 2007, 2007.
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