00317nam a2200133Ia 4500008004100000020001800041041000800059082001700067100002000084245002400104250001000128260003200138300001300170211209s2019    xx            000 0 und d  a9788120329287  aeng  a658.4032 PAN  aPANNEERSELVAN R  aOPERATION RESEARCH   a2 ed.  bNEW AGE INTERNATIONALc2019  aXII, 608