00315nam a2200121Ia 4500008004100000041000800041082002100049100002100070245003900091250001000130260004400140300000900184211209s1993    xx            000 0 und d  aeng  a658.4034 N93 WAG  aWAGNER, HARVEY M  aPRINCIPLES OF OPERATIONS RESEARCH   a2 ed.  aNEW DELHIbPRENTICE-HALL OF INDIAc1993  a1039