00494nam a2200193Ia 4500003000400000005001700004008004100021040000700062041001200069082001800081100001600099245006800115260004000183300001300223365001200236650001800248650002000266700001400286OSt20250925174935.0210423s1972    xx            000 0 und d  cAL  aEnglish  a305.231bSHAM  aUsha K Shah  aMentally retarded children an intensive study of hundread cases  aNew DelhibPopular Book Depotc1972  av,26bPB  b28cINR  aSocial Groups  aSocial Sciences  aAsher N C