000 00306nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a305.23 MAN/M MAN/M
100 _aMANJU BISWAS
245 0 _aMENTALLY RETARTED AND NORMAL CHILDREN
260 _bDefault Publisher
_c1980
300 _a153
942 _cTB
999 _c20971
_d20971