Zandstra  Hubert. G <br/><br/>
Papers ppppresented At The   Crop- livestock  Research Workshop 

 - Los Banos, Laguna, Philippines  Asian Farming Systems  Network  International  Rice  Research  Insititute  1983 
 -  406.P;ill 
<br/><br/><label>Universal Decimal Class. No.: </label>631.1  / DOA