Hallows, R. (2006). IELTS Express: Upper Intermediate Coursebook. Boston, MA: Thomson.
シカゴスタイル引用形Hallows, Richard. IELTS Express: Upper Intermediate Coursebook. Boston, MA: Thomson, 2006.
MLA引用形式Hallows, Richard. IELTS Express: Upper Intermediate Coursebook. Boston, MA: Thomson, 2006.
警告: この引用は必ずしも正確ではありません.