APA
Dargatz D. A., . (2002). The veterinary clinics of North America food animal practice : biosecurity of cattle operations. Philadelphia, PA: Saunders an imprint of Elsevier.
Chicago
Dargatz David A, . 2002. The veterinary clinics of North America food animal practice : biosecurity of cattle operations. Philadelphia, PA: Saunders an imprint of Elsevier.
Harvard
Dargatz D. A., . (2002). The veterinary clinics of North America food animal practice : biosecurity of cattle operations. Philadelphia, PA: Saunders an imprint of Elsevier.
MLA
Dargatz David A, . The veterinary clinics of North America food animal practice : biosecurity of cattle operations. Philadelphia, PA: Saunders an imprint of Elsevier. 2002.