| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Le Nouvel Espagnol sans Peine 4 Audio CD's | 978-0-8288-4062-0 (0-8288-4062-8) | 1995 | |
| Linguaphone Portuguese Course for Danish Speakers Beginner's Course | 978-0-8288-4059-0 (0-8288-4059-8) | 1991 | Linguaphone |
| Linguaphone Portuguese Course for Dutch Speakers Beginner's Course | 978-0-8288-4058-3 (0-8288-4058-X) | 1991 | " |