000			00432nam a2200145Ia 4500
008			211104s9999 xx 000 0 und d
020			_a9780071070942
041			_aENGLISH
082			_a005.43 Q0 ELM
100			_aELMASRI, CARRICK, LEVINE
245		0	_aOPERATING SYSTEMS A SPIRAL APPROACH
260			_c2010 _bTATA McGRAW HILL
650			_aOPERATING SYSTEMS [Unix, Linux, Dos, Windows, Android] *spine with OS name
942			_cBK
999			_c2161 _d2161