000			00325nam a2200133Ia 4500
008			220822s9999||||xx |||||||||||||| ||und||
020			_a9788120338111
082			_a005.43 _bPAB/O
100			_aPabitra Pal Choudhury
245		0	_aOperating Systems
260			_aNew Delhi _bPHI Learning _c2009
300			_a325
942			_cBK
999			_c11557 _d11557