M.D .Gunasena <br/><br/>
Earth : 

 - Guasena :  Colombo ;  2012. 
 - 64 p ; 24cm .  01 
 - 2024-07-31 
<br/><br/><label>ISBN: </label>9789552120862 
<br/><br/><label>Nat. Bib. No.: </label>0002074 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>GUN 
<br/><br/><label>Universal Decimal Class. No.: </label>920