Ruthenberg, Hans <br/><br/>
Innovation policy for small farmers in the tropics  the economics of technical innovations for agricultural development edited by Hans E. Jahnke 
by Hans Ruthenberg 
 - Oxford [Oxfordshire]  Clarendon  1985 
 - xii, 176 p.  ill  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farms, Small--Tropics<br/>Agriculture and state--Tropics<br/>Agricultural innovations--Economic aspects--Tropics
<br/><br/><label>Dewey Class. No.: </label>338.1  / 6