Jakeman, V. (1999). Insight into IELTS: The Cambridge IELTS course. Cambrige, UK: Cambridge University Press.
シカゴスタイル引用形Jakeman, Vanessa. Insight Into IELTS: The Cambridge IELTS Course. Cambrige, UK: Cambridge University Press, 1999.
MLA引用形式Jakeman, Vanessa. Insight Into IELTS: The Cambridge IELTS Course. Cambrige, UK: Cambridge University Press, 1999.
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