Doff, A. J. (2001). Language in use: Beginner's Classroom book. Cambridge University Press.
シカゴスタイル引用形Doff, Adrian; Jones. Language in Use: Beginner's Classroom Book. Cambridge: Cambridge University Press, 2001.
MLA引用形式Doff, Adrian; Jones. Language in Use: Beginner's Classroom Book. Cambridge University Press, 2001.
警告: この引用は必ずしも正確ではありません.