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Twilight of the Gods: The Mayan Calendar and the Return of the Extraterrestrials: Erich von Däniken: 9798200095803: Amazon.com: Books
Twilight of the Gods: The Mayan Calendar and the Return of the Extraterrestrials by Erich von Daniken - Audiobooks on Google Play
The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors by Philip Coppens - Audiobooks on Google Play
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The Ancient Alien Question, 10th Anniversary Edition by Philip Coppens, Erich Von Däniken - foreword, Kathleen McGowan - preface - Audiobook - Audible.com
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