M. R. Williams · M. Williams · Mary Williams · R. Williams
Doral Publishing · Pelham Bks.
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| All About the Labrador | 978-0-7207-1218-6 (0-7207-1218-1) | 1980 |
| Reaching for the Stars: Formerly Advanced Labrador Breeding | 978-0-944875-64-3 (0-944875-64-5) | 2000 |