| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Kontakte: A Communication Approach | 978-0-07-845090-7 (0-07-845090-X) | 1999 | |
| Using Computers in Teaching Foreign Languages | 978-0-13-940289-0 (0-13-940289-6) | 1985 | Geoffrey R. Hope · Heimy F. Taylor |