Cita APA (7a ed.)
Murphy, R. (2015). Essential grammar in use: <a> self-study reference and practice book for elementary learners of English (4th ed.). Cambridge University Press.
Cita Chicago Style (17a ed.)
Murphy, Raymond. Essential Grammar in Use: <a> Self-study Reference and Practice Book for Elementary Learners of English. 4th ed. Cambridge: Cambridge University Press, 2015.
Cita MLA (9a ed.)
Murphy, Raymond. Essential Grammar in Use: <a> Self-study Reference and Practice Book for Elementary Learners of English. 4th ed. Cambridge University Press, 2015.
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