Gear, J., & Gear, R. (2006). Cambridge preparation for the toefl test (Fourth edition.). Cambridge University Press.
Chicago Style (17. basım) AtıfGear, Jolene, ve Robert Gear. Cambridge Preparation for the Toefl Test. Fourth edition. Cambridge: Cambridge University Press, 2006.
MLA (9th ed.) AtıfGear, Jolene, ve Robert Gear. Cambridge Preparation for the Toefl Test. Fourth edition. Cambridge University Press, 2006.
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