Douglas Hergert
Name : Douglas Hergert
| Book | Role |
|---|---|
| Your Timex 1000 and ZX81 | Author |
| Mein Sinclair ZX81 | Author |
| Mijn Sinclair ZX81 | Author |
| Timex/Sinclair 1000 BASIC Handbook, The | Author |
| Sinclair ZX81 BASIC Handbuch | Author |
| Sinclair ZX Spectrum BASIC Handbuch | Author |
