Richards, J. C. (1997). New interchange: English for international communication : teacher's edition. Cambridge: Cambridge University.
シカゴスタイル引用形Richards, Jack C. New Interchange: English for International Communication : Teacher's Edition. Cambridge: Cambridge University, 1997.
MLA引用形式Richards, Jack C. New Interchange: English for International Communication : Teacher's Edition. Cambridge: Cambridge University, 1997.
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