Murphy, R. (2014). Basic grammar in use with answers: Self-study Reference and Practice for Students of North American English. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoMurphy, Raymond. Basic Grammar in Use With Answers: Self-study Reference and Practice for Students of North American English. Cambridge: Cambridge University Press, 2014.
Trích dẫn MLAMurphy, Raymond. Basic Grammar in Use With Answers: Self-study Reference and Practice for Students of North American English. Cambridge: Cambridge University Press, 2014.
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