| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Discus Breeding for Beginners | 978-0-7938-3008-4 | 2000 | |
| Discus for the Perfectionist | 978-0-86622-168-9 | 1992 | |
| Discus Today | 978-0-7938-0100-8 | 1996 | Bernd Degen |
| Jack Wattley's Handbook of Discus/H1070 | 978-0-86622-037-8 | 1985 | |