A Máscara
| Book | Formuła Lymphatera |
| Publisher | Caminho |
| Translated by | António Pescada |
| Cover/Jacket Design by | Henrique Cayatte |
| Revised by | Secção de Revisão da Editorial Caminho |
| Publisher Series | Caminho Ficção Cientifica |
| Printed by | Gráfica da Venda Seca |
| Series | Ijon Tichy |
| Format | Paperback |
| Language | Portuguese |
| Location | Portugal |
| Printed | 1990-05 |
| Pages / Font | 195 pages |
| ISBN | 972-21-0502-7 |
| DL (Portuguese) | 36 326/90 |
| Barcode | 9789722105026 |
| EAN 5 | 21113 |
| Series Number | 113 |
| Chapters | A fórmula de Lymphater, 7. A invasão aldebaranesa, 39. Cento e trinta e sete segundos, 51. A verdade, 83. Dois jovens, 109. A máscara, 117. Diário, 171. |
| Notes | Translated from the french. |
Added by Xavier.Rafael · Last edited by thethrowback