Gunaratne, H.S. <br/><br/>
Rocks and minerals of Ceylon 

 - Colombo:  The department of national museums,  1967. 
 - 58p.;  21cm 
 - Ceylon National Museums Handbook   1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Sciences
<br/><br/><label>Dewey Class. No.: </label>551  / GUN