| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-78110-682-7 | 1781106827 |
| ISBN-13 | 978-1-78110-682-2 | 9781781106822 |
| Agency | English language | |
| Publisher | Pottermore Publishing | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 87-02-23783-0 | 8702237830 |
| ISBN-13 | 978-87-02-23783-2 | 9788702237832 |
| Agency | Denmark | |
| Publisher | Gyldendalske Boghandel | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 87-02-26733-0 | 8702267330 |
| ISBN-13 | 978-87-02-26733-4 | 9788702267334 |
| Agency | Denmark | |
| Publisher | Gyldendalske Boghandel | |