000 00317nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aAggarwal, J.C.
245 0 _aEssentials Of Educational Technology : Teaching Learning Innoivations In Educationn
260 _aNew Delhi
_bVPH
_c2004
300 _a463p.
942 _cBK
999 _c11396
_d11396