Alexander, L. (1990). Developing Skills: An Integrated Course for Intermediate Students. London: Longman.
シカゴスタイル引用形Alexander, L.G. Developing Skills: An Integrated Course for Intermediate Students. London: Longman, 1990.
MLA引用形式Alexander, L.G. Developing Skills: An Integrated Course for Intermediate Students. London: Longman, 1990.
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