Difficult Riddles For Smart Kids: Science and Technology Edition: 350 Fun Brain-Stumpers For Kids and Families: Ages 8 and up (7-9, 9-13+) (Eleven Worlds to Explore)
| Country | USA |
| Brand | United States Institute of Peace Press |
| Manufacturer | United States Inst of Peace Pr |
| Binding | Paperback |
| EANs | 9781878379825 |
| ReleaseDate | 0000-00-00 |