Murphy, R. (1999). Essential grammar in use: A reference and practice book for elementary students of English (2. ed., new ed.). Cambridge Univ. Press.
Chicago-Zitierstil (17. Ausg.)Murphy, Raymond. Essential Grammar in Use: A Reference and Practice Book for Elementary Students of English. 2. ed., new ed. Cambridge: Cambridge Univ. Press, 1999.
MLA-Zitierstil (9. Ausg.)Murphy, Raymond. Essential Grammar in Use: A Reference and Practice Book for Elementary Students of English. 2. ed., new ed. Cambridge Univ. Press, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.