Environmental Index :  Newspaper and Journal Articles on Environment /  English. 

 - Battaramulla.  Central Environmental Authority,  1997. 
 - 38 p.:  30cm. 
<br/><br/> Sinhala version. 
<br/><br/><label>Dewey Class. No.: </label>X551.588 (083.86)"97"  / NAT