000 00321nam a2200121Ia 4500
008 221229s9999 xx 000 0 und d
100 _aSharma, Ramnath & Chandra, S.S.
245 0 _aAdvanced Educational Technology
260 _aNew Delhi
_bAtlantic Publication
_c2007
300 _a561
650 _aEducation
942 _cBK
999 _c7775
_d7775