Ur, P. (1996). Grammar practice activities: A practical guide for teachers. Cambridge University Press.
Citación estilo ChicagoUr, Penny. Grammar Practice Activities: A Practical Guide for Teachers. Cambridge ; New York: Cambridge University Press, 1996.
Cita MLAUr, Penny. Grammar Practice Activities: A Practical Guide for Teachers. Cambridge University Press, 1996.
Warning: These citations may not always be 100% accurate.