| title | ISBN-13 | year of publication |
|---|---|---|
| 7 Secrets of Influence | 978-0-07-073087-8 | 1992 |
| Creating Rapport: Using Personal Power to Influence Without Control | 978-1-4188-4688-6 | 2005 |
| Seven Secrets of Influence 6 Audiocassette Series | 978-1-57970-084-3 | 1989 |
| Seven Secrets of Influence | 978-0-07-073084-7 | 1991 |
| The Seven Secrets of Influence: Portable Power for the 21st Century | 978-0-07-073085-4 | 1991 |
Audio-Forum · Course Technology · McGraw-Hill