000 00298nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a371.3078 AHE E
100 _aSharma, A.R.
245 0 _aEducational Techonology
260 _aAgra
_bVinod Pustak Mandir
_c1985
300 _a266p.
942 _2ddc
999 _c23440
_d23440