Hewings, M. (2013). Advanced grammar in use: A self-study reference and practice book for advanced learners of english (3rd ed.). Cambridge University.
Chicago-Zitierstil (17. Ausg.)Hewings, Martin. Advanced Grammar in Use: A Self-study Reference and Practice Book for Advanced Learners of English. 3rd ed. Cambridge: Cambridge University, 2013.
MLA-Zitierstil (9. Ausg.)Hewings, Martin. Advanced Grammar in Use: A Self-study Reference and Practice Book for Advanced Learners of English. 3rd ed. Cambridge University, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.