Calcudoku Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 4) (Calcudoku - Hard to Master)
| Country | USA |
| Brand | Independently Published |
| Manufacturer | Independently published |
| Binding | Paperback |
| IsAdultProduct | |
| Height | 8 |
| Length | 5 |
| Weight | 0.19180216794 |
| Width | 0.18 |
| ReleaseDate | 0000-00-00 |