Bollinger, Ernst <br/><br/>
Agricultural extension  guidelines for extension workers in rural areas 
Ernst Bollinger ; Peter Reinhard ; Tonino Zellweger 
 - Ill. 
<br/><br/><label>ISBN: </label>3-908001-20-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Landwirtschaft<br/>Ländliche Gegend