| Titel | ISBN-13 | Erschei- nungsjahr | andere Autoren |
|---|---|---|---|
| Aspects of English | 978-3-926686-22-0 | 1996 | Barbro Woxbrandt |
| Looking at Language Intermediate: Topical English for Students at Intermediate and Advanced Level | 978-3-926686-09-1 | 2001 | " |
| Looking at Language: Topics, Themes & Texts, Upper-Intermediate and Advanced level | 978-3-926686-10-7 | 1991 | " |
| On Course - English Grammar for German Students | 978-3-926686-14-5 | 2008 | " |
C. K. · Claus König · Claus Koenigs · Claus Konig · Claus Kunz