000 00271nam a2200109Ia 4500
008 250604s9999 xx 000 0 und d
100 _aAgrawal, J.C.
245 0 _aEssentials of Educational Technology
260 _bAgrawal Pub.
_aAgra
_c2007
300 _a555
942 _cBK
999 _c19252
_d19252