APA引文

Ur, P. Discussions that work: Task-centred fluency practice (1a ed., 8a reimpresión.).

Chicago Style (17th ed.) Citation

Ur, Penny. Discussions That Work: Task-centred Fluency Practice. 1a ed., 8a reimpresión.

MLA引文

Ur, Penny. Discussions That Work: Task-centred Fluency Practice. 1a ed., 8a reimpresión.

警告：這些引文格式不一定是100％准確.