| well-formed | ||
| no hyphens provided | ||
| ISBN-10 | 0-9560109-0-3 | 0956010903 |
| ISBN-13 | 978-0-9560109-0-2 | 9780956010902 |
| Agency | English language | |
| Publisher | Children's High Level Group | |
| well-formed | |||||||||
| invalid hyphenation | |||||||||
| ISBN-10 | 0-956-01090-3 | 0956010903 | |||||||
| ISBN-13 | 978-0-956-01090-2 | 9780956010902 | |||||||
| Agency | English language | ||||||||
| Hyphenation provided appears to be incorrect. It should be: 978-0-9560109-0-2 | |||||||||