Richards, J. C. (1993). English for International Communication: Workbook ( Interchange). Cambridge: Cambridge University.
シカゴスタイル引用形Richards, Jack C. English for International Communication: Workbook ( Interchange). Cambridge: Cambridge University, 1993.
MLA引用形式Richards, Jack C. English for International Communication: Workbook ( Interchange). Cambridge: Cambridge University, 1993.
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