Adventures Unlimited Press · Keyhole Publishing Company
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Hidden in Plain Sight: Beyond the X-Files | 978-0-9677995-2-0 (0-9677995-2-X) | 2012 |
| Underground Bases and Tunnels: What Is the Government Trying to Hide? | 978-0-932813-37-4 (0-932813-37-2) | 2015 |