| Publisher | A.W. Bruna & Zoon Utrecht/Antwerpen |
| Series | Zwarte Beertjes |
| Translated by | Ruud Löbler |
| Cover/Jacket Design by | Dick Bruna |
| Copyright Holder | Arthur C. Clarke |
| Format | Pocket book |
| Language | Dutch |
| Location | Utrecht/Antwerpen |
| This Edition Published | 1969 |
| Copyright | 1958 |
| Pages / Font | 190 pages |
| Series Number | 1164 |
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