Yazar
Hans Ruthenberg
14 cilt bulundu.
Hans Ruthenberg · Oxford University Press
366 sayfa · 1971
Agricultural systems / Farm management / Tropics / Exploitations agricoles / Systèmes agricoles
Hans Ruthenberg · Springer
212 sayfa · 1964
Agriculture / Agriculture and state / Economic aspects of Agriculture
Hans Ruthenberg · Oxford University Press
176 sayfa · 1985
Agricultural innovations / Agriculture and state / Economic aspects of Agricultural innovations / Small Farms / Economic aspects
Hans Ruthenberg · DLG-Verlag
209 sayfa · 1970
Agricultural administration / Agriculture / Agriculture and state / Evaluation
Hans Ruthenberg · Weltforum
360 sayfa · 1968
Agriculture / Agricultura / Aspectos económcios / Política económica
Hans Ruthenberg · DLG-Verlags-GmbH
149 sayfa · 1964
Agriculture / Economic aspects / Economic aspects of Agriculture / Saving and investment
Hans Ruthenberg · Duncker & Humblot
39 sayfa · 1962
Agriculture / Economic aspects / Agriculture and state / Economic conditions / History
Hans Ruthenberg · Evangelische Zentralstelle für Weltanschauungsfragen
32 sayfa · 1973
Economic development
Yu-chao Wang, Friedrich Nagel, Hans Ruthenberg · DLG-Verl.
91 sayfa · 1969
Agriculture / Economic aspects