BOEF, De Walter <br/><br/>
Cultivating Knowledge:  Genetic Diversity, Farmer Experimentation and Crop Research / 
Walter de Boef., Kojo Amanor., Kate Wellard and Anthony Bebbington 
 - London  Intermediate Technology Publication Ltd  c1993 
 - xvi, 206p.:  ill.; 
<br/><br/> include index 
<br/><br/><label>ISBN: </label>9781853392049 
<br/><br/><label>Dewey Class. No.: </label>631.5