000 00336nam a2200133Ia 4500
008 230826s9999 xx 000 0 und d
041 _aEnglish
100 _aKulshreshtha, A
245 0 _aMental Retardation: Causes, Symptoms & Prevention
260 _bkanishka
_aND
_c2017
300 _a221
650 _aSpecial B.Ed.
942 _cREF
999 _c14272
_d14272