APA引文

Ur, P. (1981). Discussion that work: Task-centred fluency practice. Cambridge: Cambridge University.

Trích dẫn kiểu Chicago

Ur, Penny. Discussion That Work: Task-centred Fluency Practice. Cambridge: Cambridge University, 1981.

MLA引文

Ur, Penny. Discussion That Work: Task-centred Fluency Practice. Cambridge: Cambridge University, 1981.

警告：這些引文格式不一定是100％准確.