| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Self-assessment Picture Tests In Veterinary Medicine: Small Animal Ophthalmology | 978-0-7234-2003-3 (0-7234-2003-3) | 1994 |
| Small Animal Ophthalmology Secrets | 978-1-56053-407-5 (1-56053-407-9) | 2001 |
C.D. · C.R. · R. C. · R.D. · R.R. · Ronald C. · Ronald C. Riis · Ronald D.