00330nam a2200097Ia 4500008004100000100002000041245010100061250001200162260003900174650001900213190829s9999||||xx |||||||||||||| ||und||  aSinger, Charles 2aA Short History of Medicine: Introducing Medical Principles To Students And Non- Medical Readers  a2ND ED.  bJohn Wiley & SonsaNew York c1951  aAnimal Ecology