00301nam a2200097Ia 4500008004100000082001700041100004100058245007300099264002100172300001000193200526s9999||||xx |||||||||||||| ||und||  a371.92 ASH L  aAshman, Adrian F. , Laura, Ronald S. 4aThe Education and Training of the Mentally Retarded: Recent Advances  bCroom Helmc1985  a295p.