Ur, P. (1981). Discussions that work: Task-centred fluency practice. Cambridge University Press.
Citación estilo ChicagoUr, Penny. Discussions That Work: Task-centred Fluency Practice. Cambridge ; New York: Cambridge University Press, 1981.
Cita MLAUr, Penny. Discussions That Work: Task-centred Fluency Practice. Cambridge University Press, 1981.
Warning: These citations may not always be 100% accurate.