International Symposium on Distribution, Characteristics and Utilization of Problem Soils 

 - Agriculture Research Center, Ministry of Agriculture  Colombo  1982 
 - 417p.  chart 
<br/><br/><label>ISBN: </label>03889386 
<br/><br/><label>Nat. Bib. No.: </label>5117 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.42  / INT