well-formed | ||
valid hyphenation | ||
ISBN-10 | 977-14-4205-8 | 9771442058 |
ISBN-13 | 978-977-14-4205-9 | 9789771442059 |
Agency | Egypt |
well-formed | ||
valid hyphenation | ||
ISBN-10 | 1-78110-763-7 | 1781107637 |
ISBN-13 | 978-1-78110-763-8 | 9781781107638 |
Agency | English language |