000 00249nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSingh, U.K.
245 0 _aComputer Education
260 _aNew Delhi
_bDPH
_c2004
300 _a329p.
942 _cBK
999 _c11378
_d11378