| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Tapping the Source: Using the Master Key System for Abundance and Happiness | 978-1-4O27-7883-4 (1-4O27-7883-X) | 2010 | John Selby · William Gladstone |
Riccardo Gramantieri · Richard G · Richard Gehrman · Richard Gehrmann · Richard Greeman