Close Encounters of the Fatal Kind
Nicholas Redfern
Remnants of the Gods
Erich von Däniken
Evidence of the Gods
Erich von Däniken
A.D., After Disclosure
Richard M. Dolan
Thiaoouba Prophecy
Michel Desmarquet
Aliens and the Near-Death Experience
P. M. H. Atwater
The Great Architects of Mars
George J. Haas
The UFO Paradox
Keith Thompson
Karahan Tepe
Andrew Collins
Grey Aliens and Artificial Intelligence
Nigel Kerner
Alien World Order
Len Kasten
Astronaut Gods of the Maya
Erich von Däniken
There Were Giants Upon the Earth
Zecharia Sitchin
The Edge of Reality
J. Allen Hynek
The UFO Experience
J. Allen Hynek
The UFO Abduction Book
Brad Steiger
The UFO Hotspot Compendium
Craig Campobasso
The Extraterrestrial Species Almanac
Craig Campobasso
The Hynek UFO Report
J. Allen Hynek
Wonders in the Sky
Jacques Vallee
