Cita APA (7a ed.)
Murphy, R. (2007). Essential grammar in use: A self-study reference and practice book for elementary students of English : with answers (3rd ed.). Cambridge University Press.
Cita Chicago Style (17a ed.)
Murphy, Raymond. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Students of English : With Answers. 3rd ed. New York, NY, USA: Cambridge University Press, 2007.
Cita MLA (9a ed.)
Murphy, Raymond. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Students of English : With Answers. 3rd ed. Cambridge University Press, 2007.
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