| Author | Hal Clement |
| Translated by | Borbás Mária |
| Publisher | Kozmosz Könyvek |
| Publisher Series | Kozmosz Fantasztikus Könyvek |
| Series Editor | Kuczka Péter |
| First Published by | Doubleday & Company |
| Copyright Holder | Pyramid Books |
| Afterword by | Kuczka Péter |
| Cover Art by | Herpai Zoltán |
| Printing/Publishing Director | Szilvásy György |
| Editor in Chief | Szabó Valéria |
| Revised by | Göncz Árpád, Funk Miklós |
| Technical Director | Gonda Pál |
| Photo/Picture Editor | Diósi Katalin |
| Technical Editor | Végh Judit |
| Printed by | Zrínyi Nyomda |
| Managing Director | Bolgár Imre |
| Format | Paperback |
| Language | Hungarian |
| Location | Budapest |
| This Edition Published | 1978 |
| Copyright | 1978 |
| Copyright | 1975 |
| Pages / Font | 275 pages |
| ISBN | 963 211 271 7 |
| ISSN | 0324-5225 |
| Impression/Printing No. | 77.1391/1 |
| Issue Number | 43800 |
| Other | IF 3174-e-7880 |
| Price | 12,- Ft |
