000 00343nam a2200145Ia 4500
008 150518s9999||||xx |||||||||||||| ||und||
082 _a371.3028 KUL
100 _a"Kulshrestha, S.P"
245 _aTeaching of science.
250 _a2015
260 _bR.Lall Book Depot
300 _a371.3028 KUL
600 _aEducation
942 _2ddc
_cBK
999 _c14088
_d14088