000 00278nam a22000977a 4500
999 _c9540
_d9540
008 180205b ||||| |||| 00| 0 eng d
020 _a9788182961814
100 _aPandey, V K
_94972
245 _aUnderstanding Information Technology - VI
260 _aNew Delhi
_bArya Publication
_c2008