The Enneagram of G. I. Gurdjieff: Mathematics, Metaphysics, Music, and Meaning (Codhill Press)
| Country | USA |
| Brand | Hal Leonard |
| Manufacturer | Hal Leonard |
| Binding | Paperback |
| ItemPartNumber | 237285 |
| UnitCount | 1 |
| UPCs | 888680697389 |
| EANs | 9781495097515 |
| ReleaseDate | 0000-00-00 |