000 00301nam a2200133Ia 4500
008 230321s9999 xx 000 0 und d
082 _a370
_bAGG
100 _aAggarwal, J.C
245 0 _aEssentials of Educational Technology
250 _a2nd
260 _bVikas
_c2008
300 _a504
942 _cBK
999 _c3035
_d3035