APA (7. basım) Alıntı

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

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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