APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.