000 00286nam a22001217a 4500
999 _c167987
_d167987
082 _a
_b
100 _aSailendra Bhushan
245 _aEducational technology/
_cby Sailendra Bhushan.
260 _aAgra:
_bVinod Pusthak Mandir,
_c1994.
300 _a275p.
650 _a
942 _cBK