| Author | Isaac Asimov |
| Format | Hardback |
| Location | Garden City, New York |
| Copyright | 1983 |
| Pages / Font | 419 pages |
| ISBN 10 | 0-385-18400-X |
| Library of Congress Catalog Card Number | 83-8960 |
| Chapters | 19 Chapters 19 Chapters Show all ▾ |
| Notes | Part of Asimov's Robot series |
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