National Geographic · iUniverse, Inc.
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Power Lines: Two Years on South Africa's Borders | 978-0-7922-4101-0 (0-7922-4101-0) | 2003 |
| The Expert Guide to PeopleSoft Security | 978-0-595-32440-8 (0-595-32440-1) | 2004 |