C.F. · C. Fareham · Chris Fareham David Evans
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Powerbase Level 1 StudyBook CD | 978-0-582-49754-2 | 2002 | |
| Powerbase Level 2 Course Book and Class CD Pack | 978-0-582-49755-9 | 2002 | David Evans |
| Powerbase Level 2 StudyBook CD | 978-0-582-49757-3 | 2002 | |
| Powerbase Study Book Level 1 | 978-0-582-49753-5 | 2001 | |
| Powerbase Study Book Level 2 | 978-0-582-49756-6 | 2002 | |
| Powerbase Study Book Level 3 | 978-0-582-49759-7 | 2003 | |