well-formed | ||
valid hyphenation | ||
ISBN-10 | 977-14-3879-4 | 9771438794 |
ISBN-13 | 978-977-14-3879-3 | 9789771438793 |
Agency | Egypt |
well-formed | ||
valid hyphenation | ||
ISBN-10 | 1-78110-761-0 | 1781107610 |
ISBN-13 | 978-1-78110-761-4 | 9781781107614 |
Agency | English language |