well-formed | ||
valid hyphenation | ||
ISBN-10 | 977-14-2373-8 | 9771423738 |
ISBN-13 | 978-977-14-2373-7 | 9789771423737 |
Agency | Egypt | |
Publisher | Nahdet Misr |
not well-formed | |||||||||
no hyphens provided | |||||||||
The UCC prefix is malformed (should be 978 or 979). | |||||||||
The check-digit is correct. |
well-formed | ||
no hyphens provided | ||
ISBN-10 | 1-78110-984-2 | 1781109842 |
ISBN-13 | 978-1-78110-984-7 | 9781781109847 |
Agency | English language | |
Publisher | Pottermore Publishing |