00249nam a2200097Ia 4500008004100000082001000041100001700051245004500068260002700113300001100140241003s9999    xx            000 0 und d  a667.6  aECKMAN, D.P. 0aPRINCIPLES OF INDUSTRIAL PROCESS CONTROL  bJ. WILEY aJAPANc1945  aX, 237