Ur, P. (1981). Discussions that work: Task-centred fluency practice. Cambridge University Press.
Dyfyniad Arddull ChicagoUr, Penny. Discussions That Work: Task-centred Fluency Practice. Cambridge ; New York: Cambridge University Press, 1981.
Dyfyniad MLAUr, Penny. Discussions That Work: Task-centred Fluency Practice. Cambridge University Press, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.