Gear, J., & Gear, R. (2007). Cambridge preparation for the TOEFL test (4th ed.). Cambridge University Press.
Chicago Style (17. basım) AtıfGear, Jolene, ve Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed. Cambridge ; New York ; New Delhi: Cambridge University Press, 2007.
MLA (8th ed.) AtıfGear, Jolene, ve Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed. Cambridge University Press, 2007.
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