well-formed | ||
valid hyphenation | ||
ISBN-10 | 972-23-2533-7 | 9722325337 |
ISBN-13 | 978-972-23-2533-2 | 9789722325332 |
Agency | Portugal |
well-formed | ||
valid hyphenation | ||
ISBN-10 | 1-78110-307-0 | 1781103070 |
ISBN-13 | 978-1-78110-307-4 | 9781781103074 |
Agency | English language |