Samarasingha, W. <br/><br/>
සජීවී පරිසරය 
= sajiivi parisaraya 


 - Colombo :  Pahan Pub,  1986. 
 - 145p.;  20cm 
<br/><br/><label>ISBN: </label>955-9060-01-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enviromental Education
<br/><br/><label>Dewey Class. No.: </label>304.2  / SAM