Cita APA (7a ed.)

Hewings, M. (2007). Advanced gramar in use: A Self-study reference and practice book for advanced students of English (2nd ed.). Cambridge University.

Cita Chicago Style (17a ed.)

Hewings, Martin. Advanced Gramar in Use: A Self-study Reference and Practice Book for Advanced Students of English. 2nd ed. Cambridge: Cambridge University, 2007.

Cita MLA (9a ed.)

Hewings, Martin. Advanced Gramar in Use: A Self-study Reference and Practice Book for Advanced Students of English. 2nd ed. Cambridge University, 2007.