Mostly Harmless (Hitchhiker's Guide to the Galaxy Book 5)
| Country | USA |
| Brand | Less of the Excess Media |
| Manufacturer | Less of the Excess Media |
| Binding | Paperback |
| ItemPartNumber | Refer to Sapnet. |
| ReleaseDate | 2019-05-01 |
| UnitCount | 1 |
| Format | Illustrated |
| EANs | 9781926991894 |