00270nam a2200097Ia 4500008004100000082001800041100002300059245004200082264003700124300001100161200527s9999||||xx |||||||||||||| ||und||  a616.858 8 CAR  aCarter, Charles H. 0aMedical Aspects of Mental Retardation  bCharles C Thomas Publisherc1965  a1062p.