| Author | Clifford D. Simak |
| Format | Paperback |
| Language | English |
| Location | UK |
| Copyright | 1973 |
| First Printing | 1975 |
| This Edition Published | 1980 |
| Pages / Font | 191 pages |
| ISBN | 0417020406 |
| Notes | Magnum |
Added by atomicgr
| Author | Clifford D. Simak |
| Format | Paperback |
| Language | English |
| Location | UK |
| Copyright | 1973 |
| First Printing | 1975 |
| This Edition Published | 1980 |
| Pages / Font | 191 pages |
| ISBN | 0417020406 |
| Notes | Magnum |