| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Travels In Dreamland: The Secret History of Area 51 | 978-0-7528-1608-1 (0-7528-1608-X) | 1998 |
| Travels In Dreamland: The Unnatural History of the Most Secret Places on Earth | 978-0-7528-1044-7 (0-7528-1044-8) | 1997 |