00359nam a2200097Ia 4500008004100000040003800041100002300079245009800102260004900200300001200249211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aDescieudres, Alice 0aEducation of mentally defective children: psychological observation and practical suggestions  bGEORGE ALLEN AND UNWIN LIMITEDaLONDONc1928  a312p p.