| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Crystal Reports 9: The Complete Reference | 978-0-07-222519-8 (0-07-222519-X) | 2002 |
| Crystal Reports 10: The Complete Reference | 978-0-07-223166-3 (0-07-223166-1) | 2004 |
| Squirrels | 978-0-7172-1912-4 (0-7172-1912-7) | 1994 |
G. K. · G. P. · George K. · George P · George Peck · K.P.