OVNIS: El fenómeno aterrizaje
| Publisher | Plaza & Janés |
| Prologue by | Jacques Vallée |
| Cover photo | Olive |
| Imprint | Gráficas Guada, S. A. |
| Format | Hardback |
| Language | Spanish |
| Location | Barcelona, Spain |
| This Edition Published | 1978 |
| Copyright | 1978 |
| First Printing | 1978 |
| Pages / Font | 386 pages |
| DL (Spanish) | B. 35.671-1978 |
| ISBN | 84-01-33141-2 |
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