00607nam a22002057a 450000500170000001000130001702000220003003500130005203700160006504000120008108200150009310000200010824500690012826000410019727000490023830000260028750000410031365000230035465000240037720170124110037.0  aA-997926  c00.00a8187475005  aA-997926  bCen Lib/Ret  aDPLbEN  a362.2bHAR  aHarshwaradhana   aGrowth and development of mentally retarded /cby Harshawardhana  aNew Delhi bJDS Books Company c1999  a632/C, Sri Nagar Colony bNew Delhi e110034  axxii, 178p.c21cm(Hb)  aIncludes bibliographical references   aDeviation of body   aMean and standards