UFO's

• Craig, Roy. UFOs: An Insider's View of the Official Quest for Evidence. Denton, TX: University of North Texas Press, 1990. 276pp.
• Hauck, Dennis William. The National Directory of Haunted Places. Sacramento: Athanor Press, 1994. 402p.
• Peebles, Curtis. Watch the Skies! A Chronicle of the Flying Saucer Myth. Washington: Smithsonian University Press, 1994. 342p.
• Ritchie, David. UFO: The Definitive Guide to Unidentified Flying Objects and related Phenomena, New York: Facts on File, 1994. 264p. A one-volume encyclopedia on UFO's.
• United States Air Force. The Roswell Report: Fact versus Fiction in the New Mexico Desert, 1995.