Samaranayaka, D.P.R. <br/><br/>
ඛනිජ සහ පාෂාණ 10-11 වසර සඳහා 
= khanija saha pashana 


 - Colombo:  Gunasena,  1995. 
 - 40p.;  20cm 
<br/><br/><label>ISBN: </label>955-21-0415-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History
<br/><br/><label>Dewey Class. No.: </label>907  / SAM