000			00347nam a2200133Ia 4500
005			20260413100318.0
008			230516s9999||||xx |||||||||||||| ||und||
100			_aGupta , Prem Kumar & Hira D.S.
245		0	_aOperation Research
260			_bNew Delhi, S. Chand & Company _c2k1
300			_a1043
942			_cBB
999			_c163 _d163