00373nam a2200133Ia 4500008004100000020001800041041000800059082001700067100002200084245002400106260004900130300001500179500004500194230926s9999    xx            000 0 und d  a9788121902816  aeng  a654.403/GUP/  aGupta  Prem Kumar  aOperation Research   bS. Chand & Company Pvt.Ltd., New Delhic1998  aXVI;1055P.  aDoneted by Mr. Tarun Shrivastava, Nagpur