00251nam a2200109Ia 4500008004100000041000800041082002200049100001500071245003800086260000900124300000800133211209s1979    xx            000 0 und d  aeng  a658.7 N79 PLO/WIG  aPLOSSL G W  aPRODUCTION AND INVENTORY CONTROL   c1979  a432