Weerawardena, Senerath <br/><br/>
Ape visvaya 

 - Dankotuwa  Wasana Prakasakayo  1999 
 - 128 p. 
<br/><br/><label>ISBN: </label>245032 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>523  / WEE