000 00312nam a22001337a 4500
999 _c3868
_d3868
008 170411b xxu||||| |||| 00| 0 eng d
020 _a8176489425
082 _a371.102
100 _aJoshi, S.R.
245 _aTeaching of science
260 _aNew Delhi
_bAPH Pub.
_c2005
300 _a383 p. :
942 _2ddc
_cBK