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