| Author | Lester del Rey |
| Publisher | Ediciones Martínez Roca, S.A. |
| Publisher Series | Super Ficción |
| Cover Artist | Salinas Blanch |
| Translated by | Hernán Sabaté, Juan Salvador |
| Format | Soft cover |
| Language | Spanish |
| Location | Barcelona, Spain |
| This Edition Published | 1980 |
| Pages / Font | 165 pages |
| ISBN | 84-270-0597-0 |
| DL (Spanish) | B. 25.990 - 1980 |
| Volume Number | 56 |
Added by Xhorv