Ur, P., & Swan, M. (2009). Grammar practice activities: A practical guide for teachers (2nd ed.). Cambridge University Press.
Chicagoスタイル(17版)引用形式Ur, Penny, , Michael Swan. Grammar Practice Activities: A Practical Guide for Teachers. 2nd ed. Cambridge: Cambridge University Press, 2009.
MLA(9版)引用形式Ur, Penny, , Michael Swan. Grammar Practice Activities: A Practical Guide for Teachers. 2nd ed. Cambridge University Press, 2009.
警告: この引用は必ずしも正確ではありません.