G D · Gillian Drake · Glen Drake · Guillaume Drago
| title | ISBN-13 | year of publication |
|---|---|---|
| Answers, graded multiple, choice. English test | 978-84-7873-506-8 | 2010 |
| A to zed, a to zee: a guide to the differences between British and American English | 978-84-7873-346-0 | 2000 |
| Graded multiple-choice: English tests-A1 | 978-84-7873-497-9 | 2010 |
| Graded multiple-choice: English tests-A2 | 978-84-7873-498-6 | 2010 |
| Graded multiple-choice: English tests-B1 | 978-84-7873-499-3 | 2010 |
| Graded multiple-choice: English tests-B2 | 978-84-7873-500-6 | 2010 |
| Graded multiple-choice: English tests-C1 | 978-84-7873-501-3 | 2010 |
| Graded multiple-choice: English tests-C2 | 978-84-7873-502-0 | 2010 |