000 00272nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aPrasad, Janardan
245 0 _aAdvanced Educational Technology
260 _aNew Delhi
_bKanishka
_c2009
300 _a280p.
942 _cBK
999 _c14653
_d14653