| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Lake Michigan Rock Picker's Guide | 978-0-472-03150-4 (0-472-03150-3) | 2006 | Kevin Gauthier |
| Lake Superior Rock Picker's Guide | 978-0-472-03267-9 (0-472-03267-4) | 2007 | " |
| The Complete Guide to Petoskey Stones | 978-0-472-03028-6 (0-472-03028-0) | 2004 | William H. Wilde |