The Hardest Logic Workbook for Gritty Kids: Spatial Reasoning, Math Puzzles, Word Games, Logic Problems, Focus Activities, Two-Player Games. (Develop ... & STEM Skills in Kids Ages 10, 11, 12.)
| Country | USA |
| Brand | Penguin |
| Manufacturer | Penguin Classics |
| Binding | Paperback |
| ItemPartNumber | 9780140424416 |
| Color | Black |
| ReleaseDate | 2007-12-18 |
| UnitCount | 1 |
| EANs | 9780140424416 |