| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Collaborate Level 1 Teacher's Book English for Spanish Speakers | 978-84-9036-273-0 (84-9036-273-4) | 2019 |
| Collaborate Level 2 Teacher's Book English for Spanish Speakers | 978-84-9036-121-4 (84-9036-121-5) | 2019 |
L. G · L González · L.P. · Laura Gonzalez · Laura Peco · P.G.