000 00265nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aAnsari, M.S.
245 0 _aEssentials Of Educational Technology
260 _aMeerut
_bIPH
_c2007
300 _a397p.
942 _cBK
999 _c11897
_d11897