Isabel Isern Vivancos · Isabel Maria Isern Vivancos · María Isabel Isern Vivancos
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Amigos: Part 1: Workbook Higher | 978-0-19-912623-1 (0-19-912623-2) | 2006 | Michelle Armstrong |
| Amigos: Part 1: Workbook Lower | 978-0-19-912622-4 (0-19-912622-4) | 2006 | " |