Gear, J., & Gear, R. (2004). Cambridge preparation for the TOEFL test (6rd edition.). Cambridge University Press.
Chicago Style (17. basım) AtıfGear, Jolene, ve Robert Gear. Cambridge Preparation for the TOEFL Test. 6rd edition. Cambridge, UK ; New York. N.Y., USA: Cambridge University Press, 2004.
MLA (9th ed.) AtıfGear, Jolene, ve Robert Gear. Cambridge Preparation for the TOEFL Test. 6rd edition. Cambridge University Press, 2004.
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