| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Ecology and Behaviour of North American Black Bears: Home Ranges, Habitat and Social Organization | 978-O-412-5799O-5 (O-412-5799O-1)  | 1996 | R.A. Powell · D. Erran Seaman · C. Powell | 
J. W. · J-Z · J. Zimmerman · John W. Zimmerman