00251nam a2200109Ia 4500008004100000041000800041082002400049100001300073245003800086260000900124300000800133211209s1967    xx            000 0 und d  aeng  a669.141 N67 LUT/KON  aLUTH A K  aPLANNING OF IRON AND STEEL WORKS   c1967  a193