by Vicente-Juan Ballester Olmos · Plaza & Janés · tapa dura · ISBN 9788401311215
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«OVNIS: El fenómeno aterrizaje» is the essay by Vicente-Juan Ballester Olmos, published by Plaza & Janés in hardcover (382 pages, in Spanish).
Study of 200 UFO landings in the Iberian Peninsula: recounts some case files and seeks constants through statistical analysis (days of the week, times, population density, size of objects, presence of entities). Includes diagrams, photographs of footprints, tables, an appendix with the cases, and scientific-technical bibliography.
First edition of 1978, in the collection «Otros mundos». Includes 54 figures in the text, 16 tables, and 14 black-and-white photographs in plates outside the text.
A reference work for ufology enthusiasts and those interested in the historical casuistry of sightings.
