000 nam a22 7a 4500
999 _c46197
_d46197
003 OSt
005 20190410160018.0
008 190410b xxu||||| |||| 00| 0 eng d
040 _csero soft
100 _aSharma,R.A
245 _aEssential of Education Technology
260 _aMeerut
_bInternational Pub
300 _a404
942 _2ddc
_c02