Vozes Do Futuro
| Editor | Isaac Asimov |
| Publisher | Livros Do Brasil |
| Translated by | Samuel Soares |
| Cover/Jacket Design by | A. Pedro |
| Copyright Holder | Davis Publications, Inc. |
| Series | Colecção Argonauta |
| Printed by | Oficinas Gráficas de «Livros Do Brasil» |
| Format | Paperback |
| Language | Portuguese |
| Location | Lisbon |
| Copyright | 1984 |
| This Edition Published | 1991 |
| Pages / Font | 311 pages |
| Series Number | 403 |
Added by Xavier.Rafael · Last edited by auboisdormant