| Author | Philip K. Dick |
| Publisher | Publicações Europa-América |
| Translated by | Elisabeth Marques Jesus de Sousa |
| Cover/Jacket Design by | Estúdios P. E. A. |
| Cover Art by | Carlos Dias |
| Copyright Holder | Ace Books, Inc. |
| Published in/by Arrangement with | Scott Meredith Literary Agency, L.P. |
| Editor | Francisco Lyon de Castro |
| Series | Ficção Científica |
| Printed by | Gráfica Europam, Lda. |
| Format | Paperback |
| Language | Portuguese |
| Location | Portugal |
| Copyright | 1966 |
| Pages / Font | 159 pages |
| Edition No. | 35 079/3681 |
| Series Number | 79 |