000 00260nam a2200109Ia 4500
008 201009s9999 xx 000 0 und d
100 _aShukla,Vijay
245 0 _aOperating System
260 _bNew Delhi,S.K.Kataria & sons
_c2017
300 _c323
942 _cBK
999 _c16136
_d16136