| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Motivational Speakers Australia: The Indispensable Guide to Australia's Business and Motivational Speakers | 978-1-922O93-24-O (1-922O93-24-6) | 2015 | Cydney C.K. O'Sullivan · Les Brown · Allan Pease · Brian Tracy · Ilse Strauss · Sharon Pearson · Michael T. O'Sullivan |