Um Túnel No Céu
| Publisher | Publicações Europa-América |
| Translated by | Ersílio Cardoso |
| 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 | 1955 |
| Pages / Font | 195 pages |
| DL (Portuguese) | 13252/86 |
| Series Number | 120 |
| Edition No. | 135120/4145 |
Added by Xavier.Rafael