000			00308nam a2200133Ia 4500
008			221030s9999 xx 000 0 und d
041			_aEnglish
082			_a105.23
100			_aH. M. Dietel
245		3	_aAn Introduction to Operating System _cby H. M. Dietel
260			_c0
650			_aB
942			_cBK
999			_c12754 _d12754