Murphy, R. (2012). essential grammar in use: Aself-study reference and practice book for elementary students of English with answers. Cambridge University Press.
Citação do estilo Chicago (17ª ed.)Murphy, Raymond. Essential Grammar in Use: Aself-study Reference and Practice Book for Elementary Students of English with Answers. Cambridge University Press, 2012.
Citação MLA (8ª ed.)Murphy, Raymond. Essential Grammar in Use: Aself-study Reference and Practice Book for Elementary Students of English with Answers. Cambridge University Press, 2012.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.