Richards, J. C., Hull, J., & Proctor, S. (1990). Interchange: English for international communication. New York: Cambridge University Press.
シカゴスタイル引用形Richards, Jack C., Jonathan Hull, , Susan Proctor. Interchange: English for International Communication. New York: Cambridge University Press, 1990.
MLA引用形式Richards, Jack C., Jonathan Hull, , Susan Proctor. Interchange: English for International Communication. New York: Cambridge University Press, 1990.
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