Barbara Sinclaire. (1995). Activate your english: A short course for adults (Pre-intermediate coursebook). Cambridge, UK: Cambridge Univ. Press.
シカゴスタイル引用形Barbara Sinclaire. Activate Your English: A Short Course for Adults (Pre-intermediate Coursebook). Cambridge, UK: Cambridge Univ. Press, 1995.
MLA引用形式Barbara Sinclaire. Activate Your English: A Short Course for Adults (Pre-intermediate Coursebook). Cambridge, UK: Cambridge Univ. Press, 1995.
警告: この引用は必ずしも正確ではありません.