000			00357nam a2200145Ia 4500
008			230711s9999||||xx |||||||||||||| ||und||
041			_aENG
082			_a4 _bDE-O
100			_aDeitel,Harvey M
245		0	_aIntroduction to operating system
250			_a1st Ed.
260			_c1989 _aNew Delhi _bAddison Wesley
650			_aComputer Engineering
942			_cBK
999			_c172 _d172