Wanninayake, P.B. <br/><br/>
සංවර්ධන පරිපාලනය    
= sanwardana paripalanaya 


 - Colombo :  Sri Lanka sanwardana paripalana ayathanaya,  1991. 
 - vii,230p.;  22cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Land Economics<br/>Economics
<br/><br/><label>Dewey Class. No.: </label>333.715  / WAN