| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Lure of the Edge: Scientific Passions, Religious Beliefs, and the Pursuit of UFOs | 978-0-520-23905-0 (0-520-23905-9) | 2003 |
| The Lure of the Edge: Scientific Passions, Religious Beliefs, and the Pursuit of UFO's | 978-0-520-22432-2 (0-520-22432-9) | 2001 |