Ur, P. (1988). Grammar practice activities: A practical guide for teachers. CUP.
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Citação norma Chicago
Ur, Penny. Grammar Practice Activities: A Practical Guide for Teachers. Cambridge: CUP, 1988.
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Citação norma MLA
Ur, Penny. Grammar Practice Activities: A Practical Guide for Teachers. CUP, 1988.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.