El Libro De Los Craneos
| Book | The Book of Skulls |
| Format | Unknown |
| Language | Spanish |
| Original Title | The Book of Skulls |
| Original Language | English |
| Author | Robert Silverberg |
| Format | Unknown |
| Language | Spanish |
| Book | The Book of Skulls |
| Format | Unknown |
| Language | Spanish |
| Original Title | The Book of Skulls |
| Original Language | English |
| Author | Robert Silverberg |
| Format | Unknown |
| Language | Spanish |