| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 90-6169-978-9 | 9061699789 |
| ISBN-13 | 978-90-6169-978-1 | 9789061699781 |
| Agency | Netherlands | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 1-78110-348-8 | 1781103488 |
| ISBN-13 | 978-1-78110-348-7 | 9781781103487 |
| Agency | English language | |
| Publisher | Pottermore Publishing | |