Mark Harrison
Name : Mark Harrison
| Book | Role |
|---|---|
| Byteing Deeper into Your ZX81 | Author |
| Byteing Deeper Into Your Timex Sinclair 1000 | Author |
| Imparate il Basic con lo ZX81 | Author |
| Sinclair Spectrum in Focus, The | Author |
| Imparate il Basic con lo Spectrum | Author |
| Travesuras con el ZX81 | Author |
