000 00309nam a22001337a 4500
999 _c45890
_d45890
003 OSt
020 _a9788126520510
100 _aSilberschatz,Abraham et.al
245 _aOperating system concepts
260 _aNew Delhi
_bTaxmann Publication
_c2019
300 _a972p.
901 _a2314DON
942 _2ddc
_cBK