000			00343nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.79E+12
082			_a5
082			_b43 STA
100			_aSTALLINGS WILLIAM
245		0	_aOPERTING SYSTEMS INTERNA
250			_aFIFTH
260			_aNEW DELHI
260			_bP.H.I
300			_axiv-818
999			_c43950 _d43950