000 00256nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSharma, S.R.
245 0 _aEdcuational Technology
260 _aNew Delhi
_bMohit
_c2004
300 _a202p.
942 _cBK
999 _c12139
_d12139