Murphy,Raymond. English grammar in use: A self-study reference and practice book for intermediate students of English (4th.). Cambridge.
Chicago-Zitierstil (17. Ausg.)Murphy,Raymond. English Grammar in Use: A Self-study Reference and Practice Book for Intermediate Students of English. 4th. 2016: Cambridge.
MLA-Zitierstil (9. Ausg.)Murphy,Raymond. English Grammar in Use: A Self-study Reference and Practice Book for Intermediate Students of English. 4th. Cambridge.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.