Ur, P. (1981). Discussion that work: Task-centred fluency practice. Cambridge: Cambridge University.
シカゴスタイル引用形Ur, Penny. Discussion That Work: Task-centred Fluency Practice. Cambridge: Cambridge University, 1981.
MLA引用形式Ur, Penny. Discussion That Work: Task-centred Fluency Practice. Cambridge: Cambridge University, 1981.
警告: この引用は必ずしも正確ではありません.