Alexander, L. (1991). New Concept English: Practice and Progress. London: Longman.
シカゴスタイル引用形Alexander, L.G. New Concept English: Practice and Progress. London: Longman, 1991.
MLA引用形式Alexander, L.G. New Concept English: Practice and Progress. London: Longman, 1991.
警告: この引用は必ずしも正確ではありません.