The Mystery of the Invisible Hand: A Henry Spearman Mystery (Henry Spearman Mysteries)
| Country | USA |
| Brand | Prosci Learning Center Publications |
| Manufacturer | Prosci Learning Center Publications |
| Binding | Paperback |
| ItemPartNumber | 50072 |
| Model | 50072 |
| UnitCount | 1 |
| EANs | 9781930885615 |
| ReleaseDate | 0000-00-00 |