| Author | Isaac Asimov |
| Translated by | Giuseppe Lippi |
| Series | Robot |
| Publisher | Mondadori |
| Publisher Series | Oscar Mondadori, Bestsellers Oscar Mondadori |
| Format | Paperback |
| Language | Italian |
| Location | Italy |
| Copyright | 1957 |
| Copyright | 1986 |
| Pages / Font | 241 pages |
| Barcode | 9 788804 398172 |
| ISBN 10 | 88-04-39817-5 |
| Price | £ 14.000 |