

| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-5266-0238-5 | 1526602385 | 
| ISBN-13 | 978-1-5266-0238-1 | 9781526602381 | 
| Agency | English language | |
| Publishers | Bloomsbury Children's Books | |
| Bloomsbury | ||

| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 88-310-0014-4 | 8831000144 | 
| ISBN-13 | 978-88-310-0014-7 | 9788831000147 | 
| Agency | Italy | |
| Publisher | Salani Editore | |