Friday 1
| Publisher | Publicações Europa-América |
| Translated by | Maria de Lurdes Medeiros |
| Copyright Holder | Robert A. Heinlein |
| Cover/Jacket Design by | estúdios P. E. A. |
| Editor | Francisco Lyon de Castro |
| Series | Ficção Científica |
| Printed by | Gráfica Europam, Lda. |
| Format | Paperback |
| Language | Portuguese |
| Location | Portugal |
| Copyright | 1982 |
| Pages / Font | 172 pages |
| Series Number | 061 |
| Volume Number | 1 |
| Edition No. | 35 061/3443 |
Added by Xavier.Rafael