000 00283nam a2200109Ia 4500
008 220321s9999 xx 000 0 und d
100 _aKulshrestha,S.P.
245 0 _aPedagogy of School Subject physical Science
260 _aMeerut, R.Lal. Book
_c2017
300 _a492
942 _cRF
999 _c10218
_d10218