000 00340nam a22001337a 4500
008 200220b ||||| |||| 00| 0 eng d
020 _a9789380016658
082 _a005.43 WAD
100 _aWALIA, Ekta
245 _aOperating System Concepts
250 _a2nd
_b2019
260 _aNew Delhi
_bKhanna Book Publishing Co. (P) Ltd.
999 _c8504
_d8504