R.D. · R Dunbar · Ronald D. · Ronald W.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Building Fluency in English: Authentic Speech Pt. 2 | 978-0-13-086125-2 (0-13-086125-1) | 1985 | A.E. Hieke |
| Building fluency in English: Conversation management | 978-0-13-086117-7 (0-13-086117-0) | 1985 | |