| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Q Skills for Success: Level 5: Reading & Writing Student Book with iQ Online | 978-0-19-481950-3 (0-19-481950-7) | 2015 | Nigel Caplan |
| Q Skills for Success: Reading and Writing 5: Student Book with Online Practice | 978-0-19-475642-6 (0-19-475642-4) | 2011 | Nigel A. Caplan |
R.D. · R Douglas · Roy Douglas · S D · S. Douglas · S R · S. Roy · Scott Douglas · Scott R. · Scott, Roy