Verlag Edition Rainer HamppElmar A Stuhler ×Bücher × Land Policy in the Federal Republic of Germany Elmar A StuhlerEdition Rainer HamppHeft1989 Changes in Agricultural Policy and in Farm Structures in West Germany in the Past 50 Years Elmar A StuhlerEdition Rainer HamppHeft1989 Zur Interaktionsanalyse eines landwirtschaftlichen Beratungsfalles Elmar A StuhlerEdition Rainer HamppHeft