000			00334nam a2200133Ia 4500
008			170101s1995 xx 000 0 und d
020			_a8121908108
082			_a519.9 GUP
100			_aGupta, Prem Kumar
245		0	_aIntroduction to operations research
260			_aNew Delhi _bS.Chand _c1995
300			_aP.453
942			_2ddc _cBK
999			_c72231 _d72231