000 00297nam a2200121Ia 4500
008 220901s2012 xx 000 0 eng d
082 _a372.3 SAK
100 _aSakshena, A.B
245 0 _aNirmanvad avam Vighyan Shiksha
260 _bAgra: HP Bhargava
_c2012
300 _a152
942 _2ddc
_cBK
_017
999 _c3338
_d3338