R. P. ยท R. Penfold
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Audio Amplifier Projects | 978-1-870775-52-6 (1-870775-52-X) | 1997 | R. Penfold |
| Computers and Music: An Introduction | 978-1-870775-07-6 (1-870775-07-4) | 1989 | |
| Video Projects: For the Home Constructor | 978-1-870775-56-4 (1-870775-56-2) | 1998 | |