Abduction: Human Encounters With Aliens by Dr John E. Mack Published by Wheeler Publishing, Inc. Jan 1999 ISBN: 1-568-95082-9		Passport to the Cosmos by Dr John E. Mack Published by Crown Publishing Group. Nov 2000 ISBN: 0-609-80557-6
	Close Encounters of the Fourth Kind by C. D. B. Bryan Published by Viking Penguin. May 1996 ISBN: 0-140-19527-0