Doff, A., & Jones, C. (2000). Language in use: Pre-intermediate : teacher's book (New ed.). Cambridge: Cambridge U. P..
シカゴスタイル引用形Doff, Adrian, , Christopher Jones. Language in Use: Pre-intermediate : Teacher's Book. New ed. Cambridge: Cambridge U. P., 2000.
MLA引用形式Doff, Adrian, , Christopher Jones. Language in Use: Pre-intermediate : Teacher's Book. New ed. Cambridge: Cambridge U. P., 2000.
警告: この引用は必ずしも正確ではありません.