1. E. J. Catcott,1968
2. Canine Cardiology;Ettinger,1970
3. Fundamentals of Chest Roentgenology;Felson,1960
4. The Lung: Radiologic-Pathologic Correlations;Heitzman,1973
5. Disseminated pulmonary disease in small animals: A radiographic approach to diagnosis;Suter;J. Amer. Vet. Rad. Soc,1968