The Lure of the Edge by Brenda Denzler - Paperback - University of

The Lure of the Edge: Scientific Passions, Religious Beliefs, and the Pursuit of UFOs : Denzler, Brenda: : Books

List of reported UFO sightings - Wikipedia

The Lure of the Edge by Brenda Denzler - Paperback - University of California Press

UFOs: Reframing the Debate by Robbie Graham, Paperback

The Random Factor by Mark Robert Rank - Hardcover - University of

The Random Factor by Mark Robert Rank - Hardcover - University of

The Lure of the Edge – Brenda Denzler – Pocket

List of reported UFO sightings - Wikipedia

Barnes and Noble The Lure of the Edge: Scientific Passions, Religious Beliefs, and the Pursuit of UFOs / Edition 1