| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-4088-9812-8 | 1408898128 |
| ISBN-13 | 978-1-4088-9812-3 | 9781408898123 |
| Agency | English language | |
| Publishers | Bloomsbury Children's Books | |
| Bloomsbury | ||
| Bloomsbury Paperbacks | ||
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-4088-9811-X | 140889811X |
| ISBN-13 | 978-1-4088-9811-6 | 9781408898116 |
| Agency | English language | |
| Publishers | Bloomsbury Children's Books | |
| Bloomsbury | ||
| Bloomsbury Paperbacks | ||
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 84-9838-978-X | 849838978X |
| ISBN-13 | 978-84-9838-978-4 | 9788498389784 |
| Agency | Spain | |
| Publisher | Salamandra | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 84-9838-977-1 | 8498389771 |
| ISBN-13 | 978-84-9838-977-7 | 9788498389777 |
| Agency | Spain | |
| Publisher | Salamandra | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 84-17879-63-3 | 8417879633 |
| ISBN-13 | 978-84-17879-63-1 | 9788417879631 |
| Agency | Spain | |
| Publisher | Editorial Empúries | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | ||
| ISBN-13 | 979-11-92776-01-9 | 9791192776019 |
| Agency | Korea, Republic | |
| Publisher | Moonhak | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 89-8392-912-X | 898392912X |
| ISBN-13 | 978-89-8392-912-9 | 9788983929129 |
| Agency | Korea, Republic | |
| Publisher | Moonhak | |