000			00339nam a2200133Ia 4500
008			240913s9999||||xx |||||||||||||| ||und||
082			_aGS 003 GUP/O
100			_aPrem Kumar Gupta and D.S Hira
245		0	_aOperation research
250			_aNULL
260			_bS Chand and Co _aNew Delhi _c2006
300			_a1032, 8
942			_cBKS
999			_c10933 _d10933