− | Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition), Elsevier Science <br>Bridger, J and Russell, P (2007) Virology Study Guide, Royal Veterinary College<br><span id="fck_dom_range_temp_1300977195600_418" />Paterson, S (2006) Skin Diseases of Exotic Pets, Blackwell Publishing<br>Roberts, W.A. and Carter, G.A.(1976) Essentials of Veterinary Virology, p. 171, Michigan State University Press, East Lansing, Michigan | + | Blood, D.C. and Studdert, V. P. (1999) Saunders Comprehensive Veterinary Dictionary (2nd Edition), Elsevier Science |
| + | Roberts, W.A. and Carter, G.A.(1976) Essentials of Veterinary Virology, p. 171, Michigan State University Press, East Lansing, Michigan |