000			00340nam a2200145Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.78818E+12
100			_a"Stallings, William"
245		0	_aOperating Systems
250			_aFourth
260			_aNew Delhi
260			_bPearsons Education
260			_c2001
300			_a"xviii,779"
999			_c17988 _d17988