The Crowd: A Study of the Popular Mind and The Psychology of Revolution: Two Classics In One Volume
| Country | USA |
| Brand | Hal Leonard Publishing Corporation |
| Manufacturer | Hal Leonard |
| Binding | Paperback |
| ItemPartNumber | 860230 |
| Model | 860230 |
| UnitCount | 1 |
| UPCs | 884088485078 |
| EANs | 9781423476306 |
| ReleaseDate | 0000-00-00 |