000 00308nam a2200133Ia 4500
008 211201s2013 xx 000 0 eng d
082 _a378.3
100 _aKulshretha, S.P.
245 0 _aTeaching of Science
260 _bR.LALL
_aMEERUT
_c2013
300 _a612
650 _aEducation
942 _2ddc
_cDOE
_08
999 _c4483
_d4483