Las ciencias ocultas
| Format | Paperback |
| Language | Spanish |
| First Printing | 1920 |
| Original Language | French |
| Author | Eusébe Salverte |
| Publisher | Publicaciones Mundial |
| Imprint | Iimpresos Costa |
| Format | Paperback |
| Language | Spanish |
| Location | Barcelona, Spain |
| First Printing | 1920 |
| Pages / Font | 514 pages |
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