Naylor, H., & Murphy, R. (2007). Essential Grammar in use suplementary exercises, with answers (2a. ed.). Cambridge University Press.
Chicago Style (17. basım) AtıfNaylor, Helen, ve Raymond Murphy. Essential Grammar in Use Suplementary Exercises, with Answers. 2a. ed. Cambridge University Press, 2007.
MLA (9th ed.) AtıfNaylor, Helen, ve Raymond Murphy. Essential Grammar in Use Suplementary Exercises, with Answers. 2a. ed. Cambridge University Press, 2007.
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