- The Black World of UFOs: Exempt from Disclosure by Robert M. Collins, 2010-03-05
- Unsolved UFO Mysteries: The World's Most Compelling Cases of Alien Encounter by William J. Birnes, Harold Burt, 2000-07-01
- Top Secret/Majic: Operation Majestic-12 and the United States Government's UFO Cover-up by Stanton T. Friedman, 2005-08-19
- West Virginia UFO's: Close Encounters in the Mountain State by Bob Teets, 1994-10
- Secrets of Antigravity Propulsion: Tesla, UFOs, and Classified Aerospace Technology by Paul A. LaViolette Ph.D., 2008-09
- UFO: End-Time Delusion by David Allen Lewis, Robert Shreckhise, 1991-07
- Strange Skies: Pilot Encounters With Ufos by Jerome Clark, 2003-06-01
- Aliens & UFOs by Christopher Evans, 2011-03-01
- UFO Briefing Document: The Best Available Evidence by Don Berliner, 2000-06-13
- UFOs Over New York: A True History of Extraterrestrial Encounters in the Empire State by Preston Dennett, 2008-08-28
- UFO Christianity Connection:Fact or Fiction by Fred David, 2010-08-21
- UFO Religion: Inside Flying Saucer Cults and Culture by Gregory L. Reece, 2007-08-15
- The Utah UFO Display: A Scientist's Report by Frank B. Salisbury, 2010-07-08
- Beyond UFOs: The Search for Extraterrestrial Life and Its Astonishing Implications for Our Future by Jeffrey Bennett, 2008-02-04
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