000			00354nam a2200169Ia 4500
100			_aStallings William
650			_aOperating systems
250			_a6
942			_cBK
366			_f25
245			_aOperating Systems
260			_bPearson Education _c2009
082			_a5.43 _bSTA
300			_a822
546			_aENGLISH _cPAMPHALETS
999			_c34421 _d34421