000			00290nam a2200133Ia 4500
008			220613s9999||||xx |||||||||||||| ||und||
100			_aGupta,P.K.
245		0	_aOperations Research
250			_a2014
260			_bNew Delhi: S.Chand
300			_a1498
650			_aMaths
942			_cENG
999			_c13272 _d13272