| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Animal Tracks of Texas | 978-0-89886-228-7 (0-89886-228-0) | 1991 |
| Animal Tracks of the Great Lakes States: Illinois, Indiana, Michigan, Minnesota, New York, Pennsylvania, Ohio and Wisconsin | 978-0-89886-196-9 (0-89886-196-9) | 1989 |
C.S. · Chris Sidwell · Chris Steele · Chris Stiehl · Craig Steel · Craig Stull