| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-5266-0622-4 | 1526606224 |
| ISBN-13 | 978-1-5266-0622-8 | 9781526606228 |
| Agency | English language | |
| Publishers | Bloomsbury Children's Books | |
| Bloomsbury | ||
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-5266-0623-2 | 1526606232 |
| ISBN-13 | 978-1-5266-0623-5 | 9781526606235 |
| Agency | English language | |
| Publishers | Bloomsbury Children's Books | |
| Bloomsbury | ||
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 84-18174-09-9 | 8418174099 |
| ISBN-13 | 978-84-18174-09-4 | 9788418174094 |
| Agency | Spain | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 84-18174-25-0 | 8418174250 |
| ISBN-13 | 978-84-18174-25-4 | 9788418174254 |
| Agency | Spain | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 84-17879-72-2 | 8417879722 |
| ISBN-13 | 978-84-17879-72-3 | 9788417879723 |
| Agency | Spain | |
| Publisher | Editorial Empúries | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | ||
| ISBN-13 | 979-11-92776-05-7 | 9791192776057 |
| Agency | Korea, Republic | |
| Publisher | Moonhak | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 89-8392-920-0 | 8983929200 |
| ISBN-13 | 978-89-8392-920-4 | 9788983929204 |
| Agency | Korea, Republic | |
| Publisher | Moonhak | |