| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Caring for Your Aging Cat: A Quality-of-Life Guide for Your Cat's Senior Years | 978-1-4027-2613-2 (1-4027-2613-9) | 2006 |
| Caring for Your Aging Dog: A Quality-of-Life Guide for Your Dog's Senior Years | 978-1-4027-2614-9 (1-4027-2614-7) | 2006 |