well-formed | ||
valid hyphenation | ||
ISBN-10 | 977-14-2170-0 | 9771421700 |
ISBN-13 | 978-977-14-2170-2 | 9789771421702 |
Agency | Egypt |
well-formed | ||
valid hyphenation | ||
ISBN-10 | 1-78110-758-0 | 1781107580 |
ISBN-13 | 978-1-78110-758-4 | 9781781107584 |
Agency | English language |