Madivila, Kasun G <br/><br/>
Tourmaline Lanka 

 - Colombo  Gemology Consultant  2014 
 - 61 p.  Colour illustration 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Books Box B1378<br/>GEM<br/>Jewllery<br/>TOURISM
<br/><br/><label>Dewey Class. No.: </label>B1378  / LDC