The ten years follow-up study of representative sample of the low-grade mentally retarded in Poland
Card's contents:708.224 708.225 TEN YEARS The ten years follow-up study of representative sample of the low-grade mentally retarded in Poland. (Final report). By Ignacy Waid /et al./. Warsaw 1977 8 °s. nlb. 2, 4, 203, tabl. 1, il. Psychoneurological Institute