Swan, M. (2009). How english works: A grammar practice book with answers. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoSwan, Micheal. How English Works: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 2009.
MLA CitationSwan, Micheal. How English Works: A Grammar Practice Book With Answers. Oxford: Oxford University Press, 2009.
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