Franckh Kosmos Verlag · Sterling
| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| LIVING SNAKES OF THE WORLD | 978-0-8069-6461-4 (0-8069-6461-8) | 1987 | |
| Living Snakes of the World in Color | 978-0-8069-6460-7 (0-8069-6460-X) | 1987 | |
| Schlangen der Welt | 978-3-440-06710-9 (3-440-06710-6) | 1993 |