International Rice Research Institute <br/><br/>
Organic Matter And Rice 

 - P.O.BOX 933,Manila,Philippines  International Rice Research Institute  1984 
 -  p.631:ill. 
<br/><br/><label>ISBN: </label>9711041049 
<br/><br/><label>Universal Decimal Class. No.: </label>633.18  / DOA