Fleet of Worlds: 200 Years Before the Discovery of the Ringworld (Known Space)
| Country | USA |
| Brand | Lee & Low Books |
| Manufacturer | Lee & Low Books |
| Binding | Paperback |
| ItemPartNumber | 9781600608445 |
| ReleaseDate | 2011-10-01 |
| UnitCount | 1 |
| Format | Picture Book |
| EANs | 9781600608445 |