00313nam a2200109Ia 450000500170000000800410001708200160005810000180007424500650009226000380015730000080019520260224041032.0260224s9999||||xx |||||||||||||| ||und||  a636.089 VAN  aLeunis Van Es 4aThe principles of animal hygiene & preventive veterinary….  aNew York: John Wiley & Sonsc1949  a768