| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Dog Behaviour: Dealing with dog behaviour problems | 978-1-5006-2025-7 (1-5006-2025-4) | 2014 |
| Understanding Cat Behaviour | 978-1-5006-2020-2 (1-5006-2020-3) | 2014 |
D B · D. G. · D. Gordon · (D-R) · D. Roberts · Dr. G. · G.B. · G. Roberts · Gordon R. · Gordon Roberts · R. B