ISBN number search > Denmark > Selbstverlag um,
| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1998 | 978-87-986854-1-8 | Holger Windelov | Tropica Aquarium Plants |
| 1999 | 978-87-986854-2-5 | Aquarelle von Verner Hancke | Tropica Aquarium Plants. |
| 2000 | 978-87-986854-7-0 | Diverse | Tropica Aquarium Plants. |