Coming full circle  farmers' participation in the development of technology 
editors : Peter Matlon ... [et al.] 
 - Ottawa  International Development Research Centre  1984 
 - 176p.  ill. 
 - IDRC  189e .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Research<br/>Agricultural engineering<br/>Farmers--West Africa