Tizard, R. Ian Veterinary Immunology : An introduction / by Ian R. Tizard - Seventh edition - Philadelphia, Pa: Saunders , 2004. - xvi,494 pages : illus (some col.) ; 29 cm. Includes an index ISBN: 0721601367 Subjects--Topical Terms: Animal Diseases Immunology LC Class. No.: SF 757.2 Tiz