Research and extension in agricultural development. 

 - California :  International Centre for Economic growth,  1991. 
<br/><br/> This paper evaluates and summarises studies mearing the contributions of investment in technology and human capital to the growth of agricultural production in developed and developing countries. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research.<br/>Agriculture -- Agricultural training -- Extension services/.--Agriculture -- Agricultural training -- Extension services/.--Agriculture -- Agricultural training -- Extension services/.