Fleet of Worlds: 200 Years Before the Discovery of the Ringworld (Known Space)
| Country | USA |
| Brand | University of Chicago Press |
| Manufacturer | University of Chicago Press |
| Binding | Paperback |
| ReleaseDate | 2008-09-01 |
| UnitCount | 1 |
| Format | Illustrated |
| EANs | 9780226482163 |