APA Style

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

Chicago Style

Ur, Penny. Discussions that work: Task-centred fluency practice. Cambridge: Cambridge University Press, 1981. Text.

MLA Style

Ur, Penny. Discussions that work: Task-centred fluency practice. Cambridge: Cambridge University Press, 1981. Text.

Turabian Style

Ur, Penny. Discussions that work: Task-centred fluency practice. Cambridge: Cambridge University Press, 1981. Print.