000			00339nam a22001457a 4500
020			_a9788121931649
100			_aEr Rajiv Chopra
245			_aOperating Systems
250			_a1st Edition
260			_aNew Delhi _bS Chand & Company Ltd _c2009
300			_a495
650			_aOperating Systems
700			_aEr Rajiv Chopra
942			_cBK
999			_c26254 _d26254