000 00270nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aBhatnagar, R.P.
245 0 _aEdcuational Technology And Management
260 _aMeerut
_bLBD
_c2004
300 _a336+74
942 _cBK
999 _c11361
_d11361