000			00327nam a2200145Ia 4500
008			130410s9999 xx 000 0 und d
100			_aDAS SUMITABHA
245			_aUNIX SYSTEM V.4 C ONCEPTS APPLICATION
250			_a
260			_bN/A _aDelhi _c
270			_aDELHI
300			_a
650			_aCOMPUTER _b
942			_2ddc _cBK
999			_c6939 _d6939