Boydell Press · Ringpress Books Ltd
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mastiff and Bull Mastiff Handbook | 978-0-85115-485-5 (0-85115-485-9) | 1988 |
| The Ultimate Book of Mastiff Breeds | 978-1-86054-165-0 (1-86054-165-8) | 1999 |
D B · D.O. · Douglas B. · Douglas O. · Douglas Oliff