| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Springboard to French: Introduction to the French Language/Book and 2 Cassettes/00742 | 978-99956-41-29-0 (99956-41-29-1) | 1991 |
| Springboard to German: Introduction to the German Language | 978-99956-41-25-2 (99956-41-25-9) | 1991 |
| Springboard to Spanish: Introduction to the Spanish Language/Book and 2 Cassettes/00244 | 978-99956-41-27-6 (99956-41-27-5) | 1991 |