000 00279nam a2200109Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aDAS(SUMITABHA)
245 0 _aUNIX CONCEPT & APPLICATION
250 _a4
260 _bM C GRAW HILL EDUCATION PVT LTD (MCG)
942 _2ddc
_cMCA
999 _c13694
_d13694