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by Wurmbach, Hermann, Biwer, Anneli, Schneider, Lothar, Pohland, Hanne-Lore
Published 1964
Published 1964
VS Verlag für Sozialwissenschaften
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by Albers, Gerd, von Bassewitz, Horst, Becker, Jürgen, Bock, Günter
Published 1988
Published 1988
Vieweg+Teubner Verlag