Ur, P., & Penny Ur. (1988). Grammar practice activities: A practical guide for teachers. Cambridge,New York: Cambridge University Press.
Style de citation ChicagoUr, Penny, et Penny Ur. Grammar Practice Activities: A Practical Guide for Teachers. Cambridge,New York: Cambridge University Press, 1988.
Style de citation MLAUr, Penny, et Penny Ur. Grammar Practice Activities: A Practical Guide for Teachers. Cambridge,New York: Cambridge University Press, 1988.
Attention : ces citations peuvent ne pas être correctes à 100%.