You can download Atlas of Small Animal Ultrasonography 2nd Edition by Dominique Penninck and Marc-Andre d’Anjou free in pdf format.
Atlas of Small Animal Ultrasonography, Second Edition is a comprehensive reference for ultrasound techniques and findings in small animal practice, with more than 2000 high-quality sonograms and illustrations of normal structures and disorders. Provides a comprehensive collection of more than 2000 high-quality images, including both normal and abnormal ultrasound features, as well as relevant complementary imaging modalities and histopathological images. Covers both common and uncommon disorders in small animal patients. Offers new chapters on practical physical concepts and artifacts and abdominal contrast sonography