Collins Cobuild. (2012). Collins Cobuild Key Words for IELTS. TP. HCM: Tổng hợp.
シカゴスタイル引用形Collins Cobuild. Collins Cobuild Key Words for IELTS. TP. HCM: Tổng hợp, 2012.
MLA引用形式Collins Cobuild. Collins Cobuild Key Words for IELTS. TP. HCM: Tổng hợp, 2012.
警告: この引用は必ずしも正確ではありません.