C.D. · C. David · David Cotton · David Cotton, David Falvey and S. Kent John Rogers
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Managing Difficult People Eeepb Ap | 978-1-4718-0037-5 (1-4718-0037-7) | 2014 |
| Managing Difficult People Eeepub Am | 978-1-4718-0038-2 (1-4718-0038-5) | 2014 |
| Market Leader Upper Intermediate Practice File | 978-0-582-43523-0 (0-582-43523-4) | 2001 |