| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| NOW, DISCOVER YOUR STRENGTHS: HOW TO DEVELOP YOUR TALENTS AND THOSE OF THE PEOPLE YOU MANAGE | 978-0-7432-0686-0 (0-7432-0686-X) | 2001 |
C.M. · D.C. · D.O. · Donald C. · Donald Clifton · Donald O. Clifton · O. C.