Richards, J. C. (1996). Changes: English for international communication : workbook 3. Cambridge University Press.
シカゴスタイル引用形Richards, Jack C. Changes: English for International Communication : Workbook 3. Cambridge University Press, 1996.
MLA引用形式Richards, Jack C. Changes: English for International Communication : Workbook 3. Cambridge University Press, 1996.
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