Ettinger, S.J. and Feldman, E. C. (2000) '''Textbook of Veterinary Internal Medicine Diseases of the Dog and Cat Volume 2 '''(Fifth Edition) W.B. ''Saunders Company'' | Ettinger, S.J. and Feldman, E. C. (2000) '''Textbook of Veterinary Internal Medicine Diseases of the Dog and Cat Volume 2 '''(Fifth Edition) W.B. ''Saunders Company'' |