Yazar
Reinhard Adelhelm
3 cilt bulundu.
Cilt sonuçları
Agricultural mechanisation
Reinhard Adelhelm · Gesellschaft für Technische Zusammenarbeit
73 sayfa · 1976
Economic aspects / Economic aspects of Farm mechanization / Farm mechanization
Towards control of desertification in African drylands
Johannes Kotschi, Reinhard Adelhelm · Distribution, TZ-Verlagsgesellschaft
241 sayfa · 1986
Control / Desertification / Arid regions agriculture