000			00367nam a2200145Ia 4500
008			220120s9999||||xx |||||||||||||| ||und||
020			_a9788131758991
082			_a005.43 DHA
100			_aDhamdhere D. M
245		0	_aOperating Sy ems
250			_a2nd
260			_aTata mc graw hill _bNew Delhi _c2011
300			_aXII, 602p. _b435
650			_aCOMPUTER SCIENCE
999			_c132744 _d132744