Shaner, W.W <br/><br/>
Readings in farming systems research and development 

 - Washington, D.C.  USAID  1981 
 - viii,187 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AGRICULTURE<br/>CULTIVATION<br/>FARMING SYSTEMS<br/>Prof.S.Subasinghe collection
<br/><br/><label>Dewey Class. No.: </label>631.5  / REA