000			00351nam a2200145Ia 4500
005			20260205060016.0
008			260111s9999||||xx |||||||||||||| ||und||
020			_a8121902819
082			_a658.4034 G959O
100			_aGupta, Prem Kumar
245		0	_aOperations research
260			_aNew Delhi _bS.Chand _c2014
300			_a1498p.
942			_cBK
999			_c162067 _d162067