Hettiarachchi,Janaka <br/><br/>
ලෝක පරිසර අරබුදය 
= Loka parisara arbhudaya 


 - colombo  Godage,  1999 
 - 206p.;  21cm 
<br/><br/><label>ISBN: </label>9552033276 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography and Travel
<br/><br/><label>Dewey Class. No.: </label>910  / HET