Ur, P. (1992). Discussions that work task centred fluency practice. New York: Cambridge university press.
Chicago ZitierstilUr, Penny. Discussions That Work Task Centred Fluency Practice. New York: Cambridge university press, 1992.
MLA ZitierstilUr, Penny. Discussions That Work Task Centred Fluency Practice. New York: Cambridge university press, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.