C.R. · C. Ryan · Charles J. Ryan · Christa , Jan Ryan · Christopher J. Ryan · J.R. · J Ryan
| title | ISBN-13 | year of publica- tion |
|---|---|---|
| Burdens of Empire | 978-0-553-58903-0 | 2007 |
| Dexta | 978-0-553-58776-0 | 2005 |
| Glorious Treason | 978-0-553-58777-7 | 2005 |
| The Fifth Quadrant | 978-0-553-58902-3 | 2006 |