Dyfyniad APA

Penny Ur, . .. (1988). Grammar practice activities: A practical guide for teachers. Universities Press.

Dyfyniad Arddull Chicago

Penny Ur,. Grammar Practice Activities: A Practical Guide for Teachers. Cambridge: Universities Press, 1988.

Dyfyniad MLA

Penny Ur,. Grammar Practice Activities: A Practical Guide for Teachers. Universities Press, 1988.

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