F. M. · Fridhelm Marx · Friedhelm Marx
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Alles klar! Plus. Con audiocassetta: 1 | 978-88-203-3283-9 (88-203-3283-3) | Helga-Maria Marcks · Paola Minucci | |
| Alles klar! Plus. Con audiocassetta: 2 | 978-88-203-3320-1 (88-203-3320-1) | Helga-Maria Marcks · Paola Minucci |