000			00302nam a2200109Ia 4500
008			240109s9999 xx 000 0 und d
041			_aeng
100			_aJames L.Riggs
245			_aProduction Systems: Planning, Analysis & Control
260			_bJohn Wiley and Sons New York.
650			_aManagement
999			_c1019969 _d1019969