Dimantha, S. Alwis, K A De <br/><br/>
Land Suitability Evaluation and Land Use Study of the Dry and Intermediate Zones of Ratnapura District 

 - Agrarian Research and Training Institute,   Colombo, Sri Lanka  1981 
 - 100p.  chart 
<br/><br/><label>Nat. Bib. No.: </label>5709 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.15  / DIM