00295nam a2200109Ia 4500008004100000041000800041082002500049100001200074245004200086260004900128300000800177211209s1982    xx            000 0 und d  aeng  a658.4034 N82 HAM/TAH  aHAMDY A  aOPERATIONS RESEARCH: AN INTRODUCTION   aNEW YORKbMACMILLAN PUBLISHING COMPANYc1982  a862