000 00243nam a22000977a 4500
999 _c5306
_d5306
008 170112b xxu||||| |||| 00| 0 eng d
020 _a9788181372024
100 _92354
_aSachdeva.P.
245 _aComputer Class-6
260 _aNew Delhi
_bRachna
_c2010