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Flying Saucers and Science: A Scientist Investigates the Mysteries of UFOs: Interstellar Travel, Crashes, and Government Cover-Ups
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Portals and Corridors: A Guide to Hyperspace Travel
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Celestial Passengers: UFO's and Space Travel
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Interstellar Travel & Multi-Generational Space Ships: Apogee Books Space Series 34
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Secrets of the Unified Field: The Philadelphia Experiment, The Nazi Bell, and the Discarded Theory
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Witness to Roswell: Unmasking the 60-Year Cover-Up
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Need to Know: UFOs, the Military, and Intelligence
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Secrets of Antigravity Propulsion: Tesla, UFOs, and Classified Aerospace Technology
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UFOs and the National Security State: Chronology of a Coverup, 1941-1973
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The Montauk Project: Experiments in Time
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Interdimensional Universe: The New Science of UFOs, Paranormal Phenomena and Otherdimensional Beings
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Unconventional Flying Objects: A Scientific Analysis
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Faster Than Light: Superluminal Loopholes in Physics
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The Starflight Handbook: A Pioneer's Guide to Interstellar Travel (Wiley Science Editions)
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Spacefaring: The Human Dimension
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The Giant Leap: Mankind Heads for the Stars
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Interstellar Travel - Past, Present and Future (How We and Alien Beings May Travel Between the Stars, Galaxies and Even Into Time)
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