Friede Pubns · Thunder Bay Press Michigan
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| A Guide to 199 Michigan Waterfalls | 978-0-9769629-0-8 | 2008 | |
| A Guide to 199 Michigan Waterfalls | 978-0-9769629-2-2 | 1988 | |
| A Guide to 199 Michigan Waterfalls, Revised Edition | 978-0-923756-15-4 | 1996 | |
| A Traveler's Guide to 116 Michigan Lighthouses | 978-0-923756-03-1 | 1992 | Bill T. Penrose · Ruth Penrose |
| A Traveler's Guide to 116 Michigan Lighthouses | 978-0-9769629-1-5 | 1992 | |