| Author | Isaac Asimov, Robert Silverberg |
| Publisher | Pan Books Ltd |
| Format | Paperback |
| Language | English |
| Location | UK |
| Copyright | 1991 |
| This Edition Published | 1992 |
| Pages / Font | 342 pages |
| ISBN | 0-330-32579-5 |
| Barcode | 9 780330 325790 |
| Price | £7.99 |
| Barcode (EAN) | 90400> |
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