Hoffmann, H. G. (1966). Exercises in English grammar and usage: A practice book for intermediate and advanced students. Max Hueber Verlag.
Chicago-Zitierstil (17. Ausg.)Hoffmann, Hans G. Exercises in English Grammar and Usage: A Practice Book for Intermediate and Advanced Students. München: Max Hueber Verlag, 1966.
MLA-Zitierstil (9. Ausg.)Hoffmann, Hans G. Exercises in English Grammar and Usage: A Practice Book for Intermediate and Advanced Students. Max Hueber Verlag, 1966.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.