O'Brien Press Ltd · Prentice Hall
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Riddle of Erskine Childers | 978-0-9502046-0-4 (0-9502046-0-9) | 1971 |
| Windows NT Security | 978-0-13-083990-9 (0-13-083990-6) | 1999 |
| Zero Administration Kit for Windows | 978-0-13-084786-7 (0-13-084786-0) | 1999 |