Agricultural extension guidelines for extension workers in rural areas
Bollinger, Ernst
Agricultural extension guidelines for extension workers in rural areas Ernst Bollinger ; Peter Reinhard ; Tonino Zellweger - Ill.
3-908001-20-X
Landwirtschaft
Ländliche Gegend
Agricultural extension guidelines for extension workers in rural areas Ernst Bollinger ; Peter Reinhard ; Tonino Zellweger - Ill.
3-908001-20-X
Landwirtschaft
Ländliche Gegend