000 00326nam a2200133Ia 4500
008 220201s2016 xx 000 0 eng d
082 _a5.432
_bDAS
100 _aDas, Sumitabha
245 0 _aUnix
_bconcepts and applications
250 _a4th ed
260 _aNew Delhi
_bMcgraw Book Co.
_c2016
300 _a671
942 _2ddc
999 _c37787
_d37787