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by Reutter, Fritz, Neukirchen, Hermann Josef, Sommer, Dietmar
Published 1968
Published 1968
VS Verlag für Sozialwissenschaften
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by Bittner, Rudolf, Dieter, Ilse, Kubicek, Siegmar, Tietz, Werner
Published 1970
Published 1970
Vieweg+Teubner Verlag