| Collana «Strategies» di Longman in London | ||||
| 1 | 3: | Abbs, Brian Freebairn, Ingrid | Developing Strategies 03 Student's Book | 198513 |
| 2 | 3.1: | Elsworth, Steve | Developing Strategies 03 Workbook | 198610 |
| 3 | 4: | Abbs, Brian Freebairn, Ingrid Clegg, John Whitney, Norman | Studying Strategies 04 Students' Book | 19858 |
| 4 | 4.1: | Elsworth, Steve | Studying Strategies 04 Workbook | 1985 |
