| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 964-6205-26-7 | 9646205267 |
| ISBN-13 | 978-964-6205-26-0 | 9789646205260 |
| Agency | Iran | |
| Publisher | Nahid | |
| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 7-5634-1198-4 | 7563411984 |
| ISBN-13 | 978-7-5634-1198-6 | 9787563411986 |
| Agency | China, People's Republic | |
| Publisher | 延边大学出版社 | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 7-02-003463-2 | 7020034632 |
| ISBN-13 | 978-7-02-003463-5 | 9787020034635 |
| Agency | China, People's Republic | |
| Publisher | People's Literature Publishing House | |
| not well-formed | |||||||||
| valid hyphenation | |||||||||
| The check-digit is not correct. If the rest of the ISBN is correct (and it may not be), the check digit should be: 2. | |||||||||
| Correcting check-digit gives: 7-02-003463-2 which appears to be valid. The governing agency is: China, People's Republic. | |||||||||
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 9952-26-179-9 | 9952261799 |
| ISBN-13 | 978-9952-26-179-0 | 9789952261790 |
| Agency | Azerbaijan | |
| Publisher | Qanun | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 7-5515-1345-0 | 7551513450 |
| ISBN-13 | 978-7-5515-1345-6 | 9787551513456 |
| Agency | China, People's Republic | |
| Publisher | Xinjiang Juvenile Publishing | |
| well-formed | ||
| valid hyphenation | ||
| ISBN-10 | 9943-5256-9-X | 994352569X |
| ISBN-13 | 978-9943-5256-9-6 | 9789943525696 |
| Agency | Uzbekistan | |
| Publisher | Adabiyot uchqunlari | |