| Original Title | Le Langage, Cet Inconnu |
| Original Language | French |
| Author | Julia Kristeva |
| Publisher | Edições 70 |
| Translated by | Maria Margarida Barahona |
| Cover/Jacket Design by | Saldanha Coutinho |
| Series | Signos |
| Format | Paperback |
| Language | Portuguese |
| Location | Portugal |
| Pages / Font | 454 pages |
| Series Number | 06 |
Added by Xavier.Rafael