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Chariots of the Gods?
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Erich von Däniken
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Mysteries of the Unexplained
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Richard Marshall
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The Guinness Book of Records
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Norris McWhirter, Ross McWhirter
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Paradoxes of Nature and Science
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William Hampson
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The Guinness Book of Records
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Norris Dewar McWhirter, Alan Ross McWhirter
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The Guinness Book of Records
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Ross McWhirter
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In Strangest Europe
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Peter Ratazzi
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The Encyclopedia of the Strange
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Daniel Cohen
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The Guinness Book of Records
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A Book of Curious Facts of General Interest Relating to Almost Everything Under the Sun
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Henry Smith Williams
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