Hans Ruthenberg <br/><br/>
Innovation policy for small farmers in the tropics 

 - Oxford  Clarendon Press  1985 
 - 176p 
<br/><br/>Hans Ruthenberg & Hans E. Jahnke: Innovation policy for small farmers in the tropics.  Oxford.  Clarendon Press, 1985. 0-19-859487-9--(338.1RUT)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-19-859487-9 
<br/><br/><label>Dewey Class. No.: </label>338.1  / RUT