| X American Society for the Prevention of Cruelty to Animals• | Foreyt, Veterinary Parasitology Reference Manual Ames, Iowa: 2001 , 40 |
|---|---|
| X American Society for the Prevention of Cruelty to Animals• McKeever, Tim Nuttall and Richard G | Foreyt, Veterinary Parasitology Reference Manual Ames, Iowa: 2001 , 40 |
Sue Patterson, Manual of Skin Diseases of the Dog and Cat, Chicester: Wiley-Blackwell, 2009 , 123-129.
27.