000 00294nam a2200121Ia 4500
008 240421s9999 xx 000 0 und d
100 _aKumar, K.L.
245 0 _aEducational Technology
250 _aSecond
260 _aNew Delhi
_bNew Age International
_c2008
300 _a345p.
942 _cBK
999 _c11995
_d11995