Jacqueline A. Ashby <br/><br/>
Evaluating technology with farmers : A handbook 

 - Columbia  Centro International de Agricultural Tropical  1990 
 - 95p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>958-9183-29-8 
<br/><br/><label>Dewey Class. No.: </label>630.715  / ASH