000 00315nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c140
040 _aBED
100 _aYadav , K.P.
245 0 _aInformation Technology
260 _bStandard Pub.
_aNew Delhi
300 _a366
500 _a3383
942 _cBK
999 _c3383
_d3383