Cita APA (7a ed.)
Hewings, M. (1999). Advanced Grammar in Use: A seft-study reference and practice book for advanced learners of English. With answers (4th printing.). Cambridge University Press.
Cita Chicago Style (17a ed.)
Hewings, Martin. Advanced Grammar in Use: A Seft-study Reference and Practice Book for Advanced Learners of English. With Answers. 4th printing. 1999: Cambridge University Press, 1999.
Cita MLA (9a ed.)
Hewings, Martin. Advanced Grammar in Use: A Seft-study Reference and Practice Book for Advanced Learners of English. With Answers. 4th printing. Cambridge University Press, 1999.
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