| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1974 | 978-0-904553-00-0 | NAPO Probation Directory 1974 | |
| 1976 | 978-0-904553-01-7 | NAPO Probation Directory 1976 | |
| 1977 | 978-0-904553-02-4 | NAPO Probation Directory 1977: 1977 | |
| 2001 | 978-0-904553-38-3 | Nigel Stone | Companion Guide to Enforcement (The Companion Guides) |
| 2000 | 978-0-904553-39-0 | Nigel Stone | A Companion Guide to Sentencing: Specific Offences Pt. 1 (The Companion Guides) |