000			00304nam a2200133Ia 4500
008			130729s9999 xx 000 0 und d
020			_a8170087554
082			_a _b
100			_aCheema, D S
245			_aOperation Research
260			_aNew Delhi _b Laxmi Pub. _c2005
650			_a _b
942			_2ddc _cBK _02
999			_c278 _d278