Unexplained Research · Unexplained Research Publishing LLC
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| The Florida Road Guide to Haunted Locations | 978-0-9798822-2-7 | 2010 | Chad Lewis |
| The Illinois Road Guide to Haunted Locations | 978-0-9762099-5-9 | 2007 | " |
| The Iowa Road Guide to Haunted Locations | 978-0-9762099-4-2 | 2007 | " |
| The Minnesota Road Guide to Haunted Locations | 978-0-9762099-2-8 | 2005 | " |
| The South Dakota Road Guide to Haunted Locations | 978-0-9762099-3-5 | 2006 | " |
| The Wisconsin Road Guide to Haunted Locations | 978-0-9762099-1-1 | 2004 | " |