Gear, J., & Gear, R. (2006). Cambridge preparation for the TOEFL test (4th ed.). Cambridge New York: Cambridge University Press.
シカゴスタイル引用形Gear, Jolene, , Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed. Cambridge New York: Cambridge University Press, 2006.
MLA引用形式Gear, Jolene, , Robert Gear. Cambridge Preparation for the TOEFL Test. 4th ed. Cambridge New York: Cambridge University Press, 2006.
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