| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 961-6018-94-9 | 9616018949 |
| ISBN-13 | 978-961-6018-94-4 | 9789616018944 |
| Agency | Slovenia | |
| Publisher | Založba Epta | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 961-01-1837-2 | 9610118372 |
| ISBN-13 | 978-961-01-1837-4 | 9789610118374 |
| Agency | Slovenia | |
| Publisher | Mladinska knjiga | |