Cita APA (7th ed.)

Murphy,Raymond. English grammar in use: A self-study reference and practice book for intermediate students of English (4th.). Cambridge.

Cita Chicago (17th ed.)

Murphy,Raymond. English Grammar in Use: A Self-study Reference and Practice Book for Intermediate Students of English. 4th. 2016: Cambridge.

Cita MLA (9th ed.)

Murphy,Raymond. English Grammar in Use: A Self-study Reference and Practice Book for Intermediate Students of English. 4th. Cambridge.