Dimensions: A Casebook of Alien Contact (Unabridged)
2024
The Invisible College : What a Group of Scientists Has Discovered About UFO Influences on the Human Race
2021
Confrontations: A Scientist's Search for Alien Contact (Alien Contact Trilogy, Book 2) (Unabridged)
2024
Revelations: Alien Contact Trilogy, Book 3 (Unabridged)
2024
The Edge of Reality : Two Scientists Evaluate What We Know of the UFO Phenomenon
2023