Counter X: Generation X - Four Days (Counter X (Unnumbered))
| Country | USA |
| Binding | Paperback |
| Brand | Graphic Novels - X-Men |
| EAN | 9780785133056 |
| ISBN | 0785133054 |
| Label | Marvel |
| Manufacturer | Marvel |
| NumberOfItems | 1 |
| NumberOfPages | 192 |
| PublicationDate | 2008-09-17 |
| Publisher | Marvel |
| Studio | Marvel |
| ReleaseDate | 0000-00-00 |